Solar Energy Summary (w/m²)

Data last updated 4/22/2025 11:10 AM.   Daily Detail Monthly Summary Seasonal Summary

Maximum Solar Energy
Date	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2025	647	803	958	1178*	---	---	---	---	---	---	---	---	1178*
2024	621	861	1032	1223	1292	1297	1252	1148	991	675	696	559	1297
2023	599	765	979	1239	1222	1299	1167	1195	1020	895	737	589	1299
2022	721	838	1107	1208	1172	1250	1252	1162	984	893	759	494	1252
2021	640	1048	1079	1255	1241	1250	1229	1123	958	875	652	589	1255
2020	649	879	1127	1215	1303	1218	1248	1113	1002	795	642	561	1303
2019	728	895	1211	1227	1296	1306	1202	1162	1174	930	870	624	1306
2018	645	817	1099	1252	1165	1266	1313	1165	1097	967	738	557	1313
2017	722	821	1042	1288	1230	1297	1299	1211	1058	919	661	677	1299
2016	735	993	1130	1216	1390	1394	1306	1204	1093	998	619	570	1394
2015	784	933	1172	1187	1283	1285	1371	1315	1111	974	759	635	1371
2014	763	888	1129	1195	1336	1403	1371	1420	1146	1076	758	652	1420
2013	668	875	1229	1273	1376	1378	1373	1294	1056	979	759	629	1378
2012	879	933	1071	1308	1260	1271	1209	1146	998	868	761	564	1308
2011	698	879	1171	1343	1324	1264	1285	1194	1088	932	717	638	1343
2010	---	---	---	---	---	---	---	---	1187	1028	754	677	1187*
Max	879	1048	1229	1343	1390	1403	1373	1420	1187	1076	870	677	1420
Average Maximum Solar Energy
Date	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2025	436	578	664	810*	---	---	---	---	---	---	---	---	608*
2024	364	617	697	836	981	1022	975	945	773	592	426	318	712
2023	391	511	700	915	941	996	962	915	782	599	473	324	710
2022	463	588	667	776	839	1012	1048	948	798	660	475	331	718
2021	430	591	664	907	925	1044	962	921	767	549	489	377	719
2020	408	584	667	896	962	1017	1038	921	654	554	451	363	710
2019	406	570	742	887	925	1002	1027	907	846	622	465	402	734
2018	449	575	705	807	965	1003	1044	879	745	570	412	317	706
2017	350	613	670	809	973	1074	1052	980	823	648	453	443	741
2016	473	643	712	886	1030	1042	1027	1029	821	664	447	375	763
2015	469	612	694	846	931	953	1034	875	860	661	490	332	730
2014	492	651	759	790	1039	1031	1080	946	850	660	500	290	758
2013	463	562	720	852	953	1030	1030	1001	802	641	498	390	746
2012	471	581	794	900	990	1084	993	937	827	639	520	383	760
2011	419	536	727	825	910	953	1021	944	835	739	463	421	734
2010	---	---	---	---	---	---	---	---	793	683	494	381	587*
Avg	432	587	705	849	955	1019	1021	939	798	632	470	363	726
Minimum Maximum Solar Energy
Date	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2025	195	102	253	84*	---	---	---	---	---	---	---	---	84*
2024	146	142	209	148	436	464	429	436	376	461	100	35	35
2023	132	91	141	469	241	793	367	508	76	169	220	77	76
2022	142	244	179	132	315	895	875	689	366	450	83	81	81
2021	156	267	116	278	279	529	708	742	178	95	176	111	95
2020	111	221	97	262	167	513	770	744	120	153	53	63	53
2019	167	172	193	111	264	355	606	415	455	195	86	81	81
2018	113	181	214	276	462	424	726	169	135	134	77	67	67
2017	76	160	91	174	320	923	601	529	568	118	172	95	76
2016	151	146	100	160	181	925	278	659	415	155	77	53	53
2015	123	149	0	160	118	285	529	457	728	125	54	39	0
2014	81	183	230	58	710	264	691	279	308	142	81	0	0
2013	67	18	90	63	183	346	348	833	211	111	86	56	18
2012	134	98	304	197	130	951	468	318	309	214	77	88	77
2011	156	88	281	70	186	469	350	269	144	378	74	79	70
2010	---	---	---	---	---	---	---	---	111	214	121	162	111*
Min	67	18	0	58	118	264	278	169	76	95	53	0	0

Color Key
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