NWS COOP Climatology for 20 August

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=8&day=20&syear=1800&eyear=2025

Select State: Select Date: Select Record Database:

Station Years High Temperature [F]   Low Temperature [F]   Precipitation [inch]
Avg: Max: Year: Min: Year:   Avg: Max: Year: Min: Year:   Avg: Max: Year:
CLINTON-1 (IA1635)166 82.6981916, 1983, 1947701907, 1951, 1956, 1934, 1915 60.6751968421950, 1897 0.162.511979
STORM-LAKE-2-E (IA7979)147 81.2961947671930, 1963, 2015, 1950 59.7741900381950 0.102.492018
OSCEOLA-3-WSW (IA6316)142 84.51011947682004, 2000, 1956 61.4751900, 1975381950 0.131.342014
LITTLE SIOUX 2NW (IA4874)37 82.1952023722018, 1987 58.8721998442012 0.163.802018
AMES MUNICIPAL AP (IA0197)27 81.4952003732016, 2009 60.4742023462012 0.241.772018
PERRY (IA6566)123 82.7981947672015, 2004 59.5731959, 1998361950 0.121.901958
Iowa - East Central Climate Division (IAC006)131 82.5981947, 1916652015, 1967 60.8741955381950 0.151.601990
GREENFIELD (IA3438)133 83.71011947672015, 1950 61.1741998391950 0.142.812018
CORNING (IA1833)131 83.5991913672004, 2015 60.7751900381950 0.174.272018
Spencer Airport (IAKSPW)29 81.2912003, 2021722004, 2000 58.4711998432004 0.100.782007
SANBORN (IA7386)142 81.3961947, 1968672000, 2015 58.0721955381950 0.111.431935
OSAGE (IA6305)158 80.5951955661997, 2015 58.1722003, 1974, 1959371950 0.172.901939
SIBLEY-5-NNE (IA7664)145 81.2971901, 1955661990, 2000 56.8721959, 1972301950 0.142.291979
Dubuque Area (IATDBQ)151 80.6991916671985, 1977 60.6761900, 1947441967 0.152.361952
Cedar Rapids Airport (IA1314)71 81.0981983681985, 1956 60.3731955471956 0.162.421969
Cedar Rapids Area (IATCID)131 81.81001916, 1947681985, 1956 60.4751947381950 0.142.421969
ALGONA (IA0133)163 81.3991983671985, 1930 59.0761972391950 0.152.201898
Dubuque Airport (IA2367)73 79.6961955671977, 1985 59.7711959, 1980441967 0.212.361952
Iowa - Northeast Climate Division (IAC003)131 80.8961916651967, 2015 59.0731980, 1955371950 0.162.072007
Iowa Drought Region 3 - Northeast (IAD003)131 81.5971916651967, 2015 59.7741955371950 0.161.772007
Burlington Airport (IA1063)127 84.31011983, 1947701956, 1950 63.5751947411950 0.152.251936
ATLANTIC-1-NE (IA0364)148 84.31001947681950, 2015 59.7761923361897 0.124.152018
NEW-HAMPTON (IA5952)127 80.6961983, 2003681950, 2015 57.6711968, 1959, 1955, 2003361950 0.224.252007
Boone (IA0807)119 82.8991983, 1947651930, 2015 59.9761947401950 0.175.922007
CHARLES-CITY (IA1402)148 81.0981955671907, 1950 58.4742003, 1955381897 0.213.142007
MARSHALLTOWN MUNICIPAL AP (IA5199)27 80.6962003722016 60.5742023482012 0.221.672018
Iowa Average (IA0000)131 82.8981947672015 60.7741980, 1955381950 0.141.312018
ALLISON (IA0157)110 81.91001947672015 59.1741959371950 0.255.242007
AMES 5 SE (IA0203)124 82.51001947652015 61.1741959, 1900, 1955411950 0.163.891979
ANAMOSA 3 SSW (IA0214)13 81.2892021612015 58.2652016512012, 2020 0.120.922022
AUDUBON (IA0385)131 82.9971955662015 59.6781947391950, 1897 0.123.102018
BATTLE CREEK 3NE (IA0512)14 82.4942023672015 58.9692021, 2023462015, 2012 0.251.592018
BELLE-PLAINE (IA0600)135 82.31001955, 1947642015 59.4721900, 1955361950 0.234.151898
BELLEVUE-L-AND-D-12 (IA0608)87 81.7981947642015 59.3741968361950 0.181.851996
CASCADE (IA1257)83 81.61021983642015 58.1721968351950 0.182.061990, 2007
CENTERVILLE (IA1354)131 83.81021983662015 62.3741924, 1900401950 0.132.451969
CHARITON (IA1394)129 84.01001947662015 60.2732003, 1900351950 0.131.971951
COLUMBUS JUNCT 2 SSW (IA1731)123 83.51031983662015 61.6881947401950 0.131.671935
DAVENPORT WFO (IA2070)13 82.1932023742015 63.6732023532012 0.230.802016
DENISON (IA2171)149 82.3971901, 1955, 1898652015 60.2741998, 1959, 1947371950 0.102.692018
Donnellson (IA2299)87 83.91001983682015 61.4731968, 1947431950 0.091.562009
DUBUQUE-LOCK-AND-DAM (IA2364)151 81.3991916642015 62.0771955451950 0.152.481952
Elkader 6SSW (Osborn) (IA2603)136 82.61011955662015 56.8731980341950 0.153.552007
Emmetsburg (IA2689)131 82.0971947, 1955672015 59.0731900, 1959381950 0.131.991898
FAIRFIELD (IA2789)169 84.01022003682015 61.6741962, 1968, 2003401950 0.152.221969
FAYETTE (IA2864)136 81.0981955, 1947662015 56.5741955341950 0.183.512007
FOREST-CITY (IA2977)130 81.4961916652015 57.9741959361950 0.132.021898
GRINNELL-3-SW (IA3473)136 82.61011947632015 59.4741900361950 0.142.971979
GRUNDY-CENTER (IA3487)131 81.5981947642015 58.7741900, 1906371950 0.162.751898
GUTHRIE-CENTER (IA3509)131 83.41001983652015 59.7751998, 1959391897 0.163.952019
HOLSTEIN 5 NNW (IA3910)9 80.9912023692015 59.2672023482015 0.321.432018
Iowa City (IA4101)168 83.61001983, 2003, 1947662015 61.0741982391950 0.203.671990
IOWA-FALLS (IA4142)160 81.7981983632015 58.0721952341950 0.173.682019
JEFFERSON (IA4228)135 82.9981947662015 60.1751998391950 0.132.202018
KEOSAUQUA (IA4389)148 85.21041983682015 61.8751962, 1968, 2003, 1947401950 0.141.712005
Le Claire L&D 14 (IA4705)86 82.21011983672015 63.2771955461950 0.173.961979
MANCHESTER-2 (IA5086)102 80.81011983642015 57.7721955401950 0.202.621952
MAQUOKETA-2-W (IA5131)167 82.21001947622015 58.4731968381950 0.213.151937
MARSHALLTOWN (IA5198)148 82.41011947632015 58.7741959, 1900, 1955371950 0.173.451979
MASON-CITY (IA5230)137 81.0961947, 1983, 1916662015 57.3741959351950 0.152.311913
MOUNT-PLEASANT (IA5796)160 84.21011983662015 61.6751947401950 0.101.652009
MUSCATINE 2N (IA5844)26 82.2932005642015 63.0712007, 2003, 2023532004 0.171.332007
NEWTON (IA5992)155 83.11001947652015 60.9751955371950 0.132.001979
NORTHWOOD (IA6103)128 79.9951959, 1955612015 57.6731959361950 0.162.551920
OELWEIN 1E (IA6199)18 80.6892021, 2023642015 60.1672021492012 0.202.352007
OSKALOOSA (IA6327)148 83.51011947652015 60.7741980, 1900361950 0.122.051939
Postville (IA6766)133 79.7961955662015 58.5751959, 1955401950 0.161.991952
RATHBUN DAM (IA6910)54 82.9991983652015 62.7751983471978 0.100.881996
SAC-CITY (IA7312)154 82.41021947652015 59.6751998, 1959421897, 1950 0.122.052018
SIGOURNEY (IA7678)148 83.81001916, 1901652015 61.0761983401950 0.090.951935
STANLEY (IA7892)19 81.0892023652015 58.2642018, 2008472012, 2020 0.323.032007
TOLEDO (IA8296)130 82.31011947, 1983622015 58.7741900381950, 1897 0.162.421920
VINTON (IA8568)155 82.81011947632015 59.3741955361950 0.161.971979
WASHINGTON (IA8688)163 84.01021983652015 61.2741972, 1947, 1983391897 0.133.081910
WEBSTER-CITY (IA8806)154 82.41011947652015 58.5731959, 1955351950 0.184.161969
WILLIAMSBURG (IA9067)145 82.81001983652015 59.8741947401950 0.164.091990
WINTERSET (IA9132)131 83.5991916632015 60.6751947401950 0.122.051969
Iowa - North Central Climate Division (IAC002)131 81.1971955652015 59.1741980371950 0.161.802007
Iowa - Central Climate Division (IAC005)131 82.5991947652015 60.6741980, 1900, 1955381950 0.151.612007
Iowa - South Central Climate Division (IAC008)131 84.1991947662015 62.4761962391950 0.121.442018
Iowa Drought Region 2 - Northcentral (IAD002)131 82.0971947, 1955662015 60.0741980, 1955381950 0.141.402018
Iowa Drought Region 5 - Southeast (IAD005)131 83.71001947662015 62.0751955391950 0.130.951989
Ames Area (IATAME)131 82.2981947652015 59.2721928, 1959, 1900381950 0.162.021898
Ida Grove Area (IATIDA)121 82.91001947672015 59.5751947371950 0.081.592018
Oelwein Area (IATOEL)101 80.6981947642015 57.9751947381950 0.162.352007
DES MOINES WSFO-JOHNSTON (IA2209)30 81.7962003732009 62.9742023502012 0.221.552019
Allerton (IA0149)122 84.0991913, 1947652004 61.4721935, 1924, 1936, 1947411950 0.121.161925
CLARINDA (IA1533)159 84.51031898682004 61.2791898371950 0.162.762018
ESTHERVILLE MUNICIPAL AP (IA2725)28 78.4882021672004 58.1711998422004 0.191.512007
LAMONI (IA4587)26 83.01002003732004 63.8732023542012 0.171.782018
LOWDEN (IA4963)37 81.1972023712004 59.7692010472012 0.211.571990
SHENANDOAH-1-NE (IA7613)106 85.41002003702004 62.5751998372011 0.192.691938
Iowa - Southwest Climate Division (IAC007)131 84.5991947682004 62.3751900, 1955401950 0.143.242018
Iowa Drought Region 4 - Southwest (IAD004)131 84.2991947682004 62.0751955401950 0.133.452018
BEACONSFIELD (IA0536)73 82.5961955642000 61.2731955421991 0.153.162018
Creston (IA1962)119 82.9991947652000 60.8731924391950 0.163.092018
Lamoni (IA4585)127 83.9991914642000 62.0751983411950 0.153.502018
LEMARS (IA4735)148 83.31001955662000 59.4761955381950 0.101.351897
LOGAN (IA4894)158 84.8991947662000 60.7741959, 1998, 1913371950 0.177.102018
MAPLETON NO. 2 (IA5123)86 82.9982003652000 60.0761947361950 0.102.342018
MOUNT-AYR (IA5769)132 83.8991947, 1913632000 61.5801948371950 0.152.552018
OAKLAND-2-E (IA6151)105 83.0971947642000 60.6741998, 1942, 1947351950 0.176.462018
RED-OAK (IA6940)152 84.91012003642000 61.6741998, 1959, 1900, 1947351950 0.183.442018
SIOUX CITY ANG (IA7702)27 82.0962023682000 60.0712007, 1998452012 0.161.802014
KEOKUK LOCK DAM 19 (IA4381)170 84.21051983661997 64.8801982471950 0.081.011937
Milford (IA5493)104 80.4971955661990 59.0741959351950 0.132.122007
PRIMGHAR (IA6800)129 82.6981947671990 59.5721972, 1900, 1955381950 0.101.302007
ROCK-RAPIDS (IA7147)131 82.31011955651990 57.9731959, 1955341950 0.132.311964
SIOUX CENTER 2 SE (IA7700)125 83.01001947691990 58.6741959401950 0.112.072007
Spencer (IA7844)129 82.0991947671990 57.9751959341950 0.173.501913
SPIRIT LAKE (IA7859)145 81.5971955, 1900661990 59.6741959401950 0.132.351913
Spencer Area (IATSPW)129 82.2991947671990 58.0751959341950 0.163.501913
BURLINGTON (IA1060)59 82.31001983631967 63.3741972, 1968512012 0.121.531969
Fort Madison (IA3007)136 84.21001983681967 63.7771900, 1968431950 0.132.271910
SWEA CITY 4 W (IA8026)69 79.9971955651967 57.5741959401956 0.113.142007
Iowa - Southeast Climate Division (IAC009)131 84.01001947661967 62.4761955391950 0.131.111989
Estherville 4E (IA2724)135 81.51001955651966 57.4751959331907 0.132.872007
IOWA CITY MUNICIPAL AP (IA4106)80 81.81012003681956 61.6741968, 1955401950 0.151.862019
MUSCATINE (IA5837)185 83.81001983711956 61.8891983421950, 1897 0.141.661935
Ottumwa (IA6389)128 84.21031947691956 62.6821900411950 0.164.542010
Iowa - Northwest Climate Division (IAC001)131 82.1971947, 1955671956 59.5731959, 1972, 1955371950 0.121.142018
Iowa Drought Region 1 - Northwest (IAD001)131 82.9991947681956 59.9741972, 1955371950 0.111.362018
AMES-8-WSW (IA0200)131 82.4981947691950 59.7731998, 2023381950 0.162.021898
CARROLL-2-SSW (IA1233)135 83.11021947671950 58.8761998371950 0.153.701920
CHEROKEE (IA1442)102 82.2991947681950 58.4751947341950 0.070.872019
GUTTENBERG-L-AND-D-10 (IA3517)87 81.6981955681950 61.3781955411950 0.133.152007
MASON CITY MUNICIPAL AP (IA5235)82 80.6961972681950 57.7731955351950 0.091.152018
SIOUX-RAPIDS (IA7726)83 82.01021947651950 58.2761947341950 0.142.471979
WATERLOO (IA8706)131 82.31011916661950 58.6741959, 1947, 2003331950 0.194.921966
Iowa - West Central Climate Division (IAC004)131 83.2991947681950 61.0751955391950 0.123.132018
Waterloo Area (IATALO)129 82.31011916661950 58.6741959, 1947, 2003331950 0.194.921966
HAMPTON-2-NW (IA3584)147 81.9991955, 1947601939 58.1741959, 1955381950 0.153.502007
Des Moines Airport (IA2203)146 83.01001983, 1947661930 63.1782023401950 0.142.772019
FORT-DODGE (IA2999)173 82.41001983, 1947651930 59.3751947381950 0.194.161969
POCAHONTAS (IA6719)120 82.1991983641930 58.6731998, 1959371950 0.121.952007
Des Moines Area (IATDSM)146 83.01001983, 1947661930 63.1782023401950 0.142.772019
CEDAR-RAPIDS-1 (IA1319)142 82.61001947, 1916691911 60.6751947381950 0.131.481935
DECORAH-2-N (IA2110)131 81.6972003, 1916, 1955671907 57.6751955371950 0.113.251907
SIOUX-CITY-WSO-AP (IA7708)135 83.11011947641890 61.2751947371950 0.162.122014
Sioux City Area (IATSUX)135 83.11011947641890 61.2751947371950 0.162.122014