NWS COOP Climatology for 30 September

This table gives a listing of unofficial daily records for NWS COOP stations. Some records may have occured on multiple years, only one is listed here. You may click on a column to sort it. You can click on the station name to get all daily records for that station or click on the date to get all records for that date.

The data found in this table was derived from the following JSON webservice:
https://mesonet.agron.iastate.edu/geojson/climodat_dayclimo.py?network=IACLIMATE&month=9&day=30&syear=1800&eyear=2025

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Station	Years	High Temperature [F]						Low Temperature [F]						Precipitation [inch]
		Avg:	Max:	Year:	Min:	Year:		Avg:	Max:	Year:	Min:	Year:		Avg:	Max:	Year:
GRINNELL-3-SW (IA3473)	131	70.0	91	1952, 1897	44	1985		45.3	64	2021	22	1984		0.13	5.52	1919
WEBSTER-CITY (IA8806)	131	70.8	93	1952	42	1985		44.4	67	1971	23	1939		0.13	4.57	1925
CHARITON (IA1394)	129	72.1	92	1952	49	1985		46.0	69	1971	25	1984		0.15	4.31	1902
AMES-8-WSW (IA0200)	131	71.7	92	2023	47	1945		46.6	69	2002	22	1899		0.13	4.16	1961
Ames Area (IATAME)	131	71.2	91	1952	47	1945		45.8	67	1971	22	1899		0.12	4.16	1961
AUDUBON (IA0385)	131	71.5	91	2023	45	1945		45.0	68	1971	24	1895		0.13	4.05	1961
Estherville 4E (IA2724)	131	69.1	91	1897	41	1985		42.2	62	1995	18	1899		0.11	4.03	1925
Boone (IA0807)	119	71.1	92	1981	43	1985		44.9	64	1937	25	1984		0.13	3.89	1919
Ottumwa (IA6389)	128	72.3	93	2023, 1897	50	1985		48.2	69	2002	26	1899		0.11	3.87	1902
ALGONA (IA0133)	131	69.3	91	1952	45	1985		45.1	61	1943, 1950, 1922, 1897	27	1939, 1956		0.15	3.45	1923
GRUNDY-CENTER (IA3487)	131	69.6	91	1952	43	1985		44.7	64	1982, 1905	20	1899		0.12	3.41	1925
Elkader 6SSW (Osborn) (IA2603)	131	69.5	92	1897	45	1985		42.6	62	1995, 2002	17	1899		0.12	3.37	1961
FAYETTE (IA2864)	131	68.0	90	1897	44	1945		42.5	61	1925	15	1899		0.12	3.35	1961
Oelwein Area (IATOEL)	69	69.8	88	2021	47	1985		44.8	69	2002	27	1972		0.09	3.35	1961
SIOUX CENTER 2 SE (IA7700)	125	71.4	92	2023	48	1985, 1907		45.3	65	2023	24	1984		0.12	3.15	1923
WILLIAMSBURG (IA9067)	131	70.8	91	1897, 1952	47	1945		45.7	65	1971	23	1899		0.13	3.15	1919
GUTHRIE-CENTER (IA3509)	129	71.4	93	2023	41	1985		45.6	66	1937	19	1899		0.10	3.03	1961
TOLEDO (IA8296)	130	70.5	92	1952	43	1985		44.8	63	2002	17	1899		0.12	3.00	1925
PERRY (IA6566)	123	71.2	92	2023, 1937	42	1985		45.5	65	1905, 1937	29	1939, 1984, 1956		0.13	2.86	1919
NEWTON (IA5992)	131	71.6	90	1994, 1952	48	1945		47.1	68	1971	26	1899		0.14	2.75	1919
Postville (IA6766)	131	66.9	88	1897	46	1945		44.8	63	1950, 1971	26	1899		0.11	2.75	1961
IOWA-FALLS (IA4142)	131	69.6	92	1952	46	1985		44.3	64	1971	19	1899		0.10	2.74	1925
AMES 5 SE (IA0203)	124	70.7	91	1952	48	1945, 1985		47.0	69	1971	29	2003		0.13	2.73	1961
KEOKUK LOCK DAM 19 (IA4381)	133	72.0	91	1952	52	1945		50.5	68	1971	31	1899		0.11	2.70	1986
Dubuque Airport (IA2367)	73	68.7	87	2023, 1971	48	1985		46.4	66	2002	30	1972, 2003		0.09	2.64	1961
Dubuque Area (IATDBQ)	151	67.7	89	1897	47	1876		47.4	68	1878	24	1899		0.12	2.64	1961
CORNING (IA1833)	131	72.0	92	1981	41	1985		46.4	65	1937	20	1984		0.11	2.63	1919
WASHINGTON (IA8688)	131	71.9	93	1952	50	1985, 1945		47.2	69	1971	21	2018		0.13	2.62	1923
Lamoni (IA4585)	127	72.6	92	2023	49	1945, 1985		47.9	69	1971	27	1899		0.10	2.58	2019
NORTHWOOD (IA6103)	128	67.1	89	1897	44	1985		43.3	61	1971	20	1899		0.13	2.58	1982
MARSHALLTOWN (IA5198)	131	70.9	93	1897	44	1985		44.6	66	1971	22	1899		0.12	2.51	1925
CARROLL-2-SSW (IA1233)	131	71.4	92	2023	45	1945		44.7	65	2007, 1971	24	1895, 1899, 1956		0.09	2.48	1919
Iowa - North Central Climate Division (IAC002)	131	68.4	90	2023	43	1985		45.0	63	1995	23	1899		0.12	2.43	1925
MANCHESTER-2 (IA5086)	103	68.7	89	1952	47	1985		44.0	61	1925, 2002	26	1984		0.10	2.40	1961
SIBLEY-5-NNE (IA7664)	131	69.7	93	1897	38	1985		42.4	63	2023	16	1939		0.10	2.35	1977
SWEA CITY 4 W (IA8026)	69	70.1	89	2023	43	1985		44.1	63	2002	27	1972, 1956		0.11	2.35	1977
ROCK-RAPIDS (IA7147)	131	70.0	93	2023	42	1985		42.7	62	1905	21	1899		0.12	2.34	1977
SPIRIT LAKE (IA7859)	131	69.6	93	1897	42	1985		45.5	66	1983	25	1939		0.09	2.31	1977
OSAGE (IA6305)	131	67.8	90	1952	45	1945, 1985		44.1	61	1950	20	1899		0.12	2.30	1925
Spencer Airport (IAKSPW)	28	75.2	96	2023	57	2018		46.4	68	2023	27	2003		0.11	2.29	2021
Spencer Area (IATSPW)	129	70.5	96	2023	44	1985		43.4	68	2023	23	1939		0.08	2.29	2021
SIGOURNEY (IA7678)	128	71.5	92	1937	49	1985		47.4	71	1971	21	1899		0.12	2.28	1919
DUBUQUE-LOCK-AND-DAM (IA2364)	151	68.0	89	1897	47	1876		48.5	68	1878	24	1899		0.11	2.27	1881
CEDAR-RAPIDS-1 (IA1319)	132	70.8	94	2023	46	1945		46.5	68	2002	22	1899		0.10	2.25	1893
Cedar Rapids Area (IATCID)	131	70.1	94	2023	46	1945		46.1	68	2002	22	1899		0.09	2.25	1893
Milford (IA5493)	104	69.9	90	2023	43	1985		45.4	66	2023	25	1939		0.10	2.24	1977
Des Moines Airport (IA2203)	146	71.6	92	2023, 1952	46	1945		49.0	70	1878, 1971	26	1899		0.07	2.19	1911
MASON-CITY (IA5230)	131	68.0	91	1952	45	1945, 1985		43.4	62	1971	15	1899		0.11	2.19	1925
Des Moines Area (IATDSM)	146	71.6	92	2023, 1952	46	1945		49.0	70	1878, 1971	26	1899		0.07	2.19	1911
CLINTON-1 (IA1635)	131	70.8	90	1971, 2023	51	1945		46.8	69	2002	19	1899		0.09	2.18	1893
HAMPTON-2-NW (IA3584)	131	69.4	94	1952	42	1985		44.1	62	1982	24	1899		0.10	2.18	1925
CENTERVILLE (IA1354)	131	72.0	95	1897	48	1985		48.0	67	1981	26	1899		0.13	2.17	1902
ESTHERVILLE MUNICIPAL AP (IA2725)	28	73.5	92	2023	55	2018		45.6	66	2023	27	2003		0.12	2.14	2021
FOREST-CITY (IA2977)	130	68.7	90	1897, 1952	44	1985		43.3	62	1995	25	1908		0.10	2.10	1925
Iowa City (IA4101)	131	72.0	91	2002, 1952	49	1945		46.7	67	2002	20	1899		0.10	2.10	1893
MOUNT-AYR (IA5769)	131	72.2	91	1952	47	1945		46.9	67	1971	29	1899		0.11	2.10	1961
VINTON (IA8568)	131	70.5	92	1952	47	1985		45.5	69	2002	22	1899		0.11	2.10	1961
Iowa - Southwest Climate Division (IAC007)	131	72.6	94	2023	43	1985		48.0	67	1981	27	1895		0.11	2.10	1961
Allerton (IA0149)	122	72.2	91	1952	49	1985		48.1	67	1971	31	1972, 1984		0.13	2.05	2019
DENISON (IA2171)	131	71.2	93	2023	43	1945		46.0	67	1971	24	1956		0.10	2.05	1919
FORT-DODGE (IA2999)	125	70.1	91	1952	44	1985, 1945		44.9	67	1971	25	1899, 1939		0.12	2.00	1925
JEFFERSON (IA4228)	131	71.5	91	2023	45	1945		45.7	69	1971	27	1899		0.10	1.99	1961
Iowa - Northwest Climate Division (IAC001)	131	69.6	92	2023	40	1985		45.1	64	2007	26	1939		0.10	1.96	1995
COLUMBUS JUNCT 2 SSW (IA1731)	123	71.3	92	1952	52	1985, 1945, 1920		47.8	66	2002	28	1924		0.08	1.95	1919
Iowa Drought Region 1 - Northwest (IAD001)	131	70.5	93	2023	40	1985		45.4	65	2007	27	1920, 1895, 1939		0.10	1.95	1995
RED-OAK (IA6940)	127	74.1	96	1994	48	1945		47.1	70	1971, 2023	23	1939		0.10	1.94	2019
Iowa - South Central Climate Division (IAC008)	131	71.9	92	1953, 2023	51	1945		48.4	66	1981	26	1899		0.12	1.94	1961
CLARINDA (IA1533)	131	72.9	92	1952, 1937	44	1985		45.5	67	1971	24	1984		0.12	1.90	1961
OSKALOOSA (IA6327)	131	72.0	93	1937	48	1985		46.6	72	1971	25	1899		0.12	1.89	1919
KEOSAUQUA (IA4389)	131	73.1	92	1952	52	1945		47.1	68	1971	24	1899		0.12	1.85	2019, 1925
CHEROKEE (IA1442)	102	71.0	92	2023	40	1985		43.7	66	2023	24	1956		0.10	1.82	1923
WAUKON (IA8755)	90	68.0	89	2019	44	1945		44.5	62	1982, 2019	28	1947		0.08	1.82	1961
BEACONSFIELD (IA0536)	73	71.6	90	2002, 2023	50	2018, 1985		46.9	66	1982	29	1992		0.08	1.81	1961
Iowa - Central Climate Division (IAC005)	131	70.2	91	2023	46	1985		46.7	64	1995	24	1899		0.12	1.81	1925
ALLISON (IA0157)	110	70.2	92	1952	45	1985		45.3	62	1925, 1995	27	1939		0.07	1.80	1925
WINTERSET (IA9132)	131	72.0	93	2023	50	1945, 1985		46.9	65	1937	26	1974		0.09	1.80	1902
GUTTENBERG-L-AND-D-10 (IA3517)	87	69.7	88	1952	49	1945		47.6	70	2002	27	1972		0.07	1.79	1961
BELLE-PLAINE (IA0600)	131	70.0	93	1952	48	1985, 1945		44.9	65	1905, 1971	23	1899		0.08	1.77	1925
FAIRFIELD (IA2789)	131	71.5	92	1897, 1952	49	1945, 1985		48.0	68	1971, 2002	27	1899		0.10	1.77	1919
Donnellson (IA2299)	86	72.5	91	1952	52	1945, 1985		47.7	65	1971, 2002	30	1984		0.10	1.76	1986
PRIMGHAR (IA6800)	129	71.4	92	2023	44	1985		46.0	69	2023	24	1939		0.09	1.76	1965
Iowa - Southeast Climate Division (IAC009)	131	71.7	95	1953	51	1945		48.5	66	1954	24	1899		0.12	1.74	1986
AMES MUNICIPAL AP (IA0197)	27	75.0	93	2023	51	2018		46.9	67	2002	27	2003		0.08	1.72	2021
OSCEOLA-3-WSW (IA6316)	130	72.5	92	1897, 2023	50	1985		46.7	66	1971	26	1899		0.11	1.70	1961
SIOUX-RAPIDS (IA7726)	83	72.5	91	2023	47	1985		44.5	66	2002	26	2003, 1956		0.09	1.69	2007
WATERLOO (IA8706)	130	69.9	94	2023	46	1945		44.6	72	2002	19	1899		0.10	1.69	2007
Waterloo Area (IATALO)	129	70.0	94	2023	46	1945		44.6	72	2002	19	1899		0.10	1.69	2007
OAKLAND-2-E (IA6151)	105	73.3	92	2023	49	2018		45.9	70	1971	25	1939		0.08	1.67	2021
Iowa Drought Region 4 - Southwest (IAD004)	131	72.3	94	2023	43	1985		47.7	66	2007, 1981	27	1895		0.11	1.65	1961
Emmetsburg (IA2689)	131	70.3	93	2023	45	1985		44.8	68	2023	24	1895		0.11	1.61	1911
POCAHONTAS (IA6719)	120	70.1	92	1952	48	1947, 1907, 1959		44.0	62	1971	23	1939		0.11	1.61	1911
CASCADE (IA1257)	82	69.7	87	1971, 2002, 1952	50	1945		43.5	62	2002	27	1949		0.06	1.60	1961
Iowa Drought Region 5 - Southeast (IAD005)	131	71.4	93	1953	50	1945		48.1	63	1995, 1954, 2002	25	1899		0.12	1.59	1919
CHARLES-CITY (IA1402)	131	68.9	91	2023	45	1985		44.5	66	2023	19	1899		0.10	1.58	1911
LEMARS (IA4735)	128	72.2	93	2023	45	1947		44.1	67	1950	25	1920		0.07	1.57	1923
Iowa - East Central Climate Division (IAC006)	131	69.7	94	1953	50	1945		46.9	64	1954	20	1899		0.11	1.57	1919
Iowa Drought Region 2 - Northcentral (IAD002)	131	69.6	92	2023	42	1985		45.9	64	1995	25	1899		0.11	1.57	1925
Fort Madison (IA3007)	131	73.0	92	1952	50	1899		49.8	68	2019	31	1899, 1924		0.08	1.56	1893
Spencer (IA7844)	129	70.1	93	2023	44	1985		43.5	69	2023	23	1939		0.07	1.55	1911
ATLANTIC-1-NE (IA0364)	131	73.3	92	1994, 2023	45	1945		44.7	69	1971	21	1984		0.08	1.50	1961
LITTLE SIOUX 2NW (IA4874)	24	75.9	97	2023	49	2018		45.5	66	2023	30	2003, 2005		0.08	1.50	2021
LOGAN (IA4894)	131	73.0	95	2023	44	1985		45.6	70	1971	24	1895		0.07	1.50	1961
STORM-LAKE-2-E (IA7979)	131	69.3	89	2023	42	1985		45.1	63	1905	26	1939		0.10	1.47	1911
DECORAH-2-N (IA2110)	131	68.3	91	2023	43	1899		43.8	65	2023	18	1899		0.11	1.45	1961
SAC-CITY (IA7312)	131	70.1	94	2023	41	1985		45.0	68	1971	26	1899		0.10	1.44	1911, 1919
SIOUX-CITY-WSO-AP (IA7708)	135	72.6	94	2023	47	1945		46.4	72	1971	27	1895		0.07	1.43	1911
Sioux City Area (IATSUX)	135	72.6	94	2023	47	1945		46.4	72	1971	27	1895		0.07	1.43	1911
Iowa - West Central Climate Division (IAC004)	131	71.2	94	2023	41	1985		46.6	66	2007	26	1895		0.10	1.42	1995
BURLINGTON (IA1060)	59	73.5	90	1994	55	2003		50.2	72	2002	33	1984		0.09	1.40	2019
Iowa Drought Region 3 - Northeast (IAD003)	131	68.6	92	1953	49	1945		45.9	61	1995, 1982, 1954	20	1899		0.11	1.38	1925
Ida Grove Area (IATIDA)	121	71.9	94	2023	46	1945		45.3	69	1971, 2023	23	1984		0.10	1.38	1919
NEW-HAMPTON (IA5952)	127	68.0	87	1952	43	2018		44.5	68	2002	22	1899		0.09	1.37	1961
BELLEVUE-L-AND-D-12 (IA0608)	87	69.7	90	1952	50	1945		45.5	66	1954	30	1993, 1984, 1949		0.05	1.36	1941
GREENFIELD (IA3438)	131	72.5	91	2023, 1897	45	1945		47.7	68	2002	26	1899		0.09	1.36	1919
MAQUOKETA-2-W (IA5131)	128	69.5	89	2021	49	1945		44.1	59	1950, 1943	17	1899		0.09	1.35	1925
MOUNT-PLEASANT (IA5796)	131	71.9	91	1952	51	1945		47.9	67	2002	32	1924, 1895, 1984		0.11	1.32	1919
Cedar Rapids Airport (IA1314)	71	70.9	94	2023	50	1985, 1975		46.5	68	2002	28	2003		0.05	1.30	1961
RATHBUN DAM (IA6910)	54	72.3	91	2023	45	1985		48.9	70	1971	32	1972, 1984		0.07	1.27	1985
Iowa - Northeast Climate Division (IAC003)	131	67.5	90	1953	48	1945		45.3	62	1982	20	1899		0.10	1.27	1925
SHENANDOAH-1-NE (IA7613)	106	74.7	94	2023	49	1985		48.0	73	2023	25	1984		0.10	1.26	1961
Burlington Airport (IA1063)	127	72.0	91	1897, 2023, 1994	50	1945		49.2	69	2019, 1897	23	1899		0.08	1.23	1995
SANBORN (IA7386)	110	69.2	87	1976, 2023	43	1947		44.1	62	1950, 2023	22	1939		0.08	1.14	1977
Iowa Average (IA0000)	131	70.3	90	2023	49	1985		46.6	63	1995	25	1899		0.11	1.10	1919
Creston (IA1962)	119	71.8	91	2023	47	1945		46.8	69	1971, 1981	26	1916		0.08	1.04	1985
MUSCATINE (IA5837)	89	72.7	92	1994	54	1985		48.5	69	1971	27	1984		0.07	0.98	1941
Le Claire L&D 14 (IA4705)	86	70.8	89	1952, 1971	51	1945		49.8	66	1995, 2002	35	1974, 1939		0.05	0.91	1986
IOWA CITY MUNICIPAL AP (IA4106)	80	71.5	93	2023	50	1945		47.6	67	1971	28	1949		0.05	0.89	1986
DES MOINES WSFO-JOHNSTON (IA2209)	29	74.7	92	2023	50	2018		50.8	68	2023	32	2003		0.07	0.82	2021
MAPLETON NO. 2 (IA5123)	86	73.2	94	2023	45	1947		44.9	70	1971	24	1984		0.04	0.74	1961
LOWDEN (IA4963)	33	73.4	94	2023	58	2018		45.5	66	2019	29	2003		0.03	0.70	2007
MASON CITY MUNICIPAL AP (IA5235)	82	70.0	92	2023	44	1985		43.7	68	2002	27	2003		0.05	0.67	1961
MARSHALLTOWN MUNICIPAL AP (IA5199)	27	73.7	93	2023	51	2018		47.0	70	2002	29	2003		0.04	0.62	2018
LAMONI (IA4587)	26	74.5	91	2023, 2002	52	2003		51.0	70	2019	39	2009		0.02	0.49	2021
SIOUX CITY ANG (IA7702)	24	75.2	93	2023	49	2018		46.4	65	2023	31	2003		0.03	0.40	2007
ANAMOSA 3 SSW (IA0214)	13	72.2	87	2021	53	2018		46.3	58	2023	36	2022		0.06	0.34	2015
MUSCATINE 2N (IA5844)	25	72.2	88	2002, 2021	55	2018		48.8	65	2002	35	2003		0.04	0.31	2015
BATTLE CREEK 3NE (IA0512)	15	75.2	94	2023	48	2018		46.2	69	2023	36	2012		0.03	0.23	2021
STANLEY (IA7892)	18	71.0	86	2021	51	2018		44.3	58	2023	30	2018		0.02	0.21	2018
DAVENPORT WFO (IA2070)	13	73.4	90	2023	62	2018		49.7	67	2019	40	2017		0.02	0.10	2020
HOLSTEIN 5 NNW (IA3910)	5	79.6	93	2023	72	2022		53.4	65	2023	42	2020		0.03	0.10	2021
OELWEIN 1E (IA6199)	18	71.8	88	2021	52	2018		45.7	58	2023	36	2018		0.01	0.10	2018