diff --git a/apps/fo/app/components/common/FacilityTermModalHeader.tsx b/apps/fo/app/components/common/FacilityTermModalHeader.tsx
index 30c77405f..d856e233f 100644
--- a/apps/fo/app/components/common/FacilityTermModalHeader.tsx
+++ b/apps/fo/app/components/common/FacilityTermModalHeader.tsx
@@ -97,10 +97,7 @@ export default function FacilityTermModalHeader<T extends { msrDt: string }>({
         const startDateOnly = new Date(startDate.getFullYear(), startDate.getMonth(), startDate.getDate());
         const endDateOnly = new Date(endDate.getFullYear(), endDate.getMonth(), endDate.getDate());
         const rainEffectDay = (item as T & { rainEffectDay: number }).rainEffectDay;
-        if(flowPanel === '1') {
-          const infoRnDay = (item as T & { infoRnDay: number }).infoRnDay;
-          return (itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly) && infoRnDay>0 && infoRnDay < 3;
-        } else if(flowPanel === '2'){
+        if(flowPanel === '2'){
           const infoRnDay = (item as T & { infoRnDay: number }).infoRnDay;
           return (itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly) && infoRnDay >= 3 && infoRnDay < 10;
         } else if(flowPanel === '3'){
@@ -122,8 +119,7 @@ export default function FacilityTermModalHeader<T extends { msrDt: string }>({
           const infoRnDay = (item as T & { infoRnDay: number }).infoRnDay;
           return (itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly) && infoRnDay >= 60;
         } else {
-          const infoRnDay = (item as T & { infoRnDay: number }).infoRnDay;
-          return (itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly) && (infoRnDay>0 || rainEffectDay ===1);
+          return (itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly) && (rainEffectDay ===1);
         }
       });
     } else if(tabName.includes("_chuncheon")) {
@@ -132,8 +128,8 @@ export default function FacilityTermModalHeader<T extends { msrDt: string }>({
         const itemDateOnly = new Date(itemDate.getFullYear(), itemDate.getMonth(), itemDate.getDate());
         const startDateOnly = new Date(startDate.getFullYear(), startDate.getMonth(), startDate.getDate());
         const endDateOnly = new Date(endDate.getFullYear(), endDate.getMonth(), endDate.getDate());
-        const infoRnDay = (item as T & { infoRnDay: number }).infoRnDay;
-        return (itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly) && infoRnDay==0;
+        const rainEffectDay = (item as T & { rainEffectDay: number }).rainEffectDay;
+        return (itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly) && rainEffectDay==0;
       });
     } else {
       filteredData = searchList.filter((item) => {
@@ -144,7 +140,6 @@ export default function FacilityTermModalHeader<T extends { msrDt: string }>({
         return itemDateOnly >= startDateOnly && itemDateOnly <= endDateOnly;
       });
     }
-    
     setCopySearchList(filteredData);
     setStandSearchList(filteredData);
   }, [searchList, searchYear, tabName, flowPanel]);
diff --git a/apps/fo/app/pages/flowRate/modal/page.tsx b/apps/fo/app/pages/flowRate/modal/page.tsx
index 409dab7eb..bc121708c 100644
--- a/apps/fo/app/pages/flowRate/modal/page.tsx
+++ b/apps/fo/app/pages/flowRate/modal/page.tsx
@@ -52,7 +52,6 @@ export default function FlowRateModal(props: { fcltyName: string; facilityCd: st
       return Number(value.replace(/,/g, ''));
     };
 
-    console.log('filteredData : ', filteredData);
     let maxtotInflAmnt = 0;
     let maxinflAmnt = 0;
     let maxsumFlow = 0;
diff --git a/apps/fo/app/store/dashboard/index.tsx b/apps/fo/app/store/dashboard/index.tsx
index 76f1bb046..89166281a 100644
--- a/apps/fo/app/store/dashboard/index.tsx
+++ b/apps/fo/app/store/dashboard/index.tsx
@@ -996,7 +996,7 @@ export const calRainEffectDayRainManage = (data: RainManageListProps[]) => {
     for(let idx = 0; idx < data.length; idx++) {
         const item = data[idx];
         if(item){
-            if(item.infoRnDay && Number(item.infoRnDay) > 3) {
+            if(item.infoRnDay && Number(item.infoRnDay) >= 3) {
                 item.rainEffectDay = 1;
             } else {
                 item.rainEffectDay = 0;
@@ -1021,12 +1021,12 @@ export const calRainEffectDayRainManage = (data: RainManageListProps[]) => {
     for(let idx = 0; idx < data.length; idx++) {
         if(data[idx] && data[idx]?.rainEffectDay === 1) {
             if(idx > 1){
-                if(data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay) > 3) {
+                if(data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay) >= 3) {
                     data[idx]!.infoRnDay = data[idx-1]!.infoRnDay;
                 }
             }
             if(idx > 2){
-                if(data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay) > 3) {
+                if(data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay) >= 3) {
                     data[idx]!.infoRnDay = data[idx-2]!.infoRnDay;
                 }
             }
diff --git a/apps/fo/app/store/flowRate/index.tsx b/apps/fo/app/store/flowRate/index.tsx
index 0a36d972b..3456bb8cc 100644
--- a/apps/fo/app/store/flowRate/index.tsx
+++ b/apps/fo/app/store/flowRate/index.tsx
@@ -170,7 +170,6 @@ const fetchFlowRateList = async (pageNo: number, pageSize: number, searchYear: s
     try {
         const tailStr = partCd ? '/'+ partCd + '/' + nameCd + '/' + fcltCpct + '/' + operationValue + (fcltyNm && fcltyNm !== '' ? '/' + fcltyNm : '') : '';        const url = '/fclt/flow/' + pageNo + '/' + pageSize + '/' + searchYear + tailStr;
         const res = await getFetch('fo', url);
-        console.log(url);
         return { data: res.data, count: res.count }
     } catch (error) {
         console.error('시설정보 유량현황 데이터를 가져오는데 실패했습니다:', error);
@@ -312,18 +311,11 @@ export const flowRateSearchReducer:(set:(fn: (state: FlowRateSearchType) => Flow
         searchFlowRateModalList: async (bscFctCd: string, searchYear: string) => {
             const res = await fetchFlowRateModalList(bscFctCd, searchYear);
             const data = res.data;
-
-            data.forEach((item: FlowRateModalProps) => {
-                if(item.infoRnDay && item.infoRnDay.toString().trim() === 'x') {
-                    item.infoRnDay = '';
-                }
-            });
-
             // 강우영향일 계산 (강우량이 3 초과이면 무조건 강우영향일)
             for(let idx = 0; idx < data.length; idx++) {
                 const item = data[idx];
                 if(item){
-                    if(item.infoRnDay && Number(item.infoRnDay) > 3) {
+                    if(item.infoRnDay && Number(item.infoRnDay.toString().trim()) >= 3) {
                         item.rainEffectDay = 1;
                     } else {
                         item.rainEffectDay = 0;
@@ -335,11 +327,11 @@ export const flowRateSearchReducer:(set:(fn: (state: FlowRateSearchType) => Flow
             for(let idx = 0; idx < data.length; idx++) {
                 if(data[idx]) {
                     // 하루 전이 강우영향일(3 이상)인 경우
-                    if(idx > 0 && data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay) >= 3) {
+                    if(idx > 0 && data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
                         data[idx]!.rainEffectDay = 1;
                     }
                     // 이틀 전이 강우영향일(3 이상)인 경우
-                    if(idx > 1 && data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay) >= 3) {
+                    if(idx > 1 && data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
                         data[idx]!.rainEffectDay = 1;
                     }
                 }
@@ -348,12 +340,12 @@ export const flowRateSearchReducer:(set:(fn: (state: FlowRateSearchType) => Flow
             for(let idx = 0; idx < data.length; idx++) {
                 if(data[idx] && data[idx]?.rainEffectDay === 1) {
                     if(idx > 1){
-                        if(data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay) > 3) {
+                        if(data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
                             data[idx]!.infoRnDay = data[idx-1]!.infoRnDay;
                         }
                     }
                     if(idx > 2){
-                        if(data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay) > 3) {
+                        if(data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
                             data[idx]!.infoRnDay = data[idx-2]!.infoRnDay;
                         }
                     }
diff --git a/apps/fo/app/store/planSewage/index.tsx b/apps/fo/app/store/planSewage/index.tsx
index e9153305a..c5286db8d 100644
--- a/apps/fo/app/store/planSewage/index.tsx
+++ b/apps/fo/app/store/planSewage/index.tsx
@@ -1,6 +1,7 @@
 import DataForm from "@/app/components/common/DataForm";
 import type { TableUpperProps } from "../dashboard";
 import { getFetch } from "@/app/components/api";
+import { calRainEffectDay, type ApiResponse, type FlowDataItem } from "../underWaterInput";
 export type { TableUpperProps };
 /**====================================
  * Store - 타입
@@ -172,14 +173,34 @@ export const planSewageReducer:(set:(fn: (state: PlanSewageType) => PlanSewageTy
         searchPlanSewageList: async (pageNo: number, pageSize: number, searchYear: string, partCd?: string, nameCd?: string, fcltCpct?: string, operationValue?: string, fcltyNm?: string) => {
             const res = await fetchPlanSewageList(pageNo, pageSize, searchYear, partCd, nameCd, fcltCpct, operationValue, fcltyNm);
             const excelDownList: ExcelType[] = [];
-            console.log('res' , res.data);
+            const data = res.data
+            const processedData = await Promise.all(data.map(async (item:PlanSewageProps) => {
+                const res2 = await getFetch('fo', '/fclt/flow/' + item.bscFctCd + '/' + searchYear) as ApiResponse;
+                const calData = calRainEffectDay(res2.data, 'SUNNY');
+
+                let sumInflAmntSunny = 0;
+                let avgInflAmntSunny = 0;
+                calData.forEach((flowItem:FlowDataItem) => {
+                    sumInflAmntSunny += Number(flowItem.inflAmnt);
+                })
+                avgInflAmntSunny = sumInflAmntSunny / calData.length;
+                item.avgInflAmntSunny = avgInflAmntSunny;
+                if(item.bscFctCd === '11200PB001R'){
+                    console.log('avgInflAmntSunny : ',item.avgInflAmntSunny);
+                    console.log('calData : ',calData);
+                }
+                return item;
+            }));
+
             /**
             * 결과데이터 계산
             * (1) 여유용량 = 시설용량 - 건기시 평균유량
             * (2) 변동부하율 = 건기시 일최대 유량/일평균유량(기준 최근 3개년)
             * (3) 분류식화율 = 분류식지역 면적(㎢)/처리구역 면적합계(㎢) ×100
             */
-            const resultData = res.data.map((item:PlanSewageProps) => {
+            const resultData = processedData.map((item:PlanSewageProps) => {
+                console.log('item.fctCpc : ',item.fctCpc);
+                console.log('item.avgInflAmntSunny : ',item.avgInflAmntSunny);
                 item.spareCapacity = Number(item.fctCpc) - Number(item.avgInflAmntSunny);
                 item.variableLoadPercent = item.maxInflAmntSunny && item.maxInflAmntSunny!==0 ? Number(item.maxInflAmntSunny) / Number(item.avgInflAmntSunny) : 0;
                 item.classifiedSewerPercent = item.sprtProcZoneAr && item.sprtProcZoneAr!==0 ? Number(item.sprtProcZoneAr) / Number(item.procZoneSm) * 100 : 0;
diff --git a/apps/fo/app/store/sewageOccur/index.tsx b/apps/fo/app/store/sewageOccur/index.tsx
index cdbc2ed4e..08b873cca 100644
--- a/apps/fo/app/store/sewageOccur/index.tsx
+++ b/apps/fo/app/store/sewageOccur/index.tsx
@@ -202,6 +202,7 @@ export type FlowDataItem = {
     infoRnDay: string | number;
     bscFctCd: string;
     msrDt: string;
+    rainEffectDay?: number;
 }
 
 export type FlowResponse = {
@@ -221,14 +222,57 @@ export const sewageOccurReducer:(set:any)=>SewageOccurActions=(set: any) => {
                 item.sggNm = item.lclgvrnmntNm.split(' ')[1]?.toString() || '';
                 item.fctCpc = parseFloat(item.fctCpc.toString().replace(/,/g, ''));
                 item.swageChangePercent = 80;
-                
 
                 const bscFctCd = item.bscFctCd;
                 const res2 = await getFetch('fo', '/fclt/flow/' + bscFctCd + '/' + searchYear) as FlowResponse;
-                
+
                 let sumChungcunDay = 0;
                 let chungcunSumFlow = 0;
                 let totWaterUsage = 0;
+                
+                // 강우영향일 계산 (강우량이 3 초과이면 무조건 강우영향일)
+                for(let idx = 0; idx < res2.data.length; idx++) {
+                    const item = res2.data[idx];
+                    if(item){
+                        if(item.infoRnDay && Number(item.infoRnDay.toString().trim()) >= 3) {
+                            item.rainEffectDay = 1;
+                        } else {
+                            item.rainEffectDay = 0;
+                        }
+                    }
+                }
+
+                // 이틀 전, 하루 전이 강우영향일(3 이상)인 경우 해당 날도 강우영향일로 설정
+                for(let idx = 0; idx < data.length; idx++) {
+                    if(data[idx]) {
+                        // 하루 전이 강우영향일(3 이상)인 경우
+                        if(idx > 0 && data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
+                            data[idx]!.rainEffectDay = 1;
+                        }
+                        // 이틀 전이 강우영향일(3 이상)인 경우
+                        if(idx > 1 && data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
+                            data[idx]!.rainEffectDay = 1;
+                        }
+                    }
+                }
+
+                for(let idx = 0; idx < data.length; idx++) {
+                    if(data[idx] && data[idx]?.rainEffectDay === 1) {
+                        if(idx > 1){
+                            if(data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
+                                data[idx]!.infoRnDay = data[idx-1]!.infoRnDay;
+                            }
+                        }
+                        if(idx > 2){
+                            if(data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
+                                data[idx]!.infoRnDay = data[idx-2]!.infoRnDay;
+                            }
+                        }
+                    }
+                }
+
+                console.log('calData : ',res2.data);
+                
                 res2.data.forEach((item: FlowDataItem) => {
                     if(Number(item.infoRnDay) ===0){
                         chungcunSumFlow += Number(item.inflAmnt);
diff --git a/apps/fo/app/store/underWaterInput/index.tsx b/apps/fo/app/store/underWaterInput/index.tsx
index 060c641dc..2d0938a56 100644
--- a/apps/fo/app/store/underWaterInput/index.tsx
+++ b/apps/fo/app/store/underWaterInput/index.tsx
@@ -260,29 +260,44 @@ const dataFormSetting=(item : UnderWaterProps)=> {
 export type UnderWaterStore = UnderWaterType & UnderWaterActions;
 
 export const calRainEffectDay = (data: FlowDataItem[], weather: string) => {
+    // 강우영향일 계산 (강우량이 3 이상이면 무조건 강우영향일)
     for(let idx = 0; idx < data.length; idx++) {
         const item = data[idx];
-        const rainDay = Number(item?.infoRnDay) >= 3 ? 1 : 0;
-        let rainEffectDay = 0;
         if(item){
-            if(idx < data.length - 2) {
-                if(rainDay == 1) {
-                    rainEffectDay = 1;
-                } else {
-                    if(idx >= 2) {
-                        if(Number(data[idx-1]?.infoRnDay) >= 3 || Number(data[idx-2]?.infoRnDay) >= 3) {
-                            rainEffectDay = 1;
-                        }
-                    }
-                }
-            } else if(idx < data.length - 1) {
-                if(rainDay == 1 || Number(data[idx+1]?.infoRnDay) >= 3) {
-                    rainEffectDay = 1;
-                }
+            if(item.infoRnDay && Number(item.infoRnDay.toString().trim()) >= 3) {
+                item.rainEffectDay = 1;
             } else {
-                rainEffectDay = rainDay;
+                item.rainEffectDay = 0;
+            }
+        }
+    }
+
+    // 이틀 전, 하루 전이 강우영향일(3 이상)인 경우 해당 날도 강우영향일로 설정
+    for(let idx = 0; idx < data.length; idx++) {
+        if(data[idx]) {
+            // 하루 전이 강우영향일(3 이상)인 경우
+            if(idx > 0 && data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
+                data[idx]!.rainEffectDay = 1;
+            }
+            // 이틀 전이 강우영향일(3 이상)인 경우
+            if(idx > 1 && data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
+                data[idx]!.rainEffectDay = 1;
+            }
+        }
+    }
+
+    for(let idx = 0; idx < data.length; idx++) {
+        if(data[idx] && data[idx]?.rainEffectDay === 1) {
+            if(idx > 1){
+                if(data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
+                    data[idx]!.infoRnDay = data[idx-1]!.infoRnDay;
+                }
+            }
+            if(idx > 2){
+                if(data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
+                    data[idx]!.infoRnDay = data[idx-2]!.infoRnDay;
+                }
             }
-            item.rainEffectDay = rainEffectDay;
         }
     }