August
August · September · July
United States · 1991–2020
August leads for comfortable weather in Sanborn: typically 26.6°C by day, 14.1°C at night, with 85 mm of rain. Based on measured 1991–2020 NOAA station history.
August · September · July
July · August · June
September · May · October
The weakest month is January, scoring 5 against August’s 79 — days reach only -5.2°C, 29° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -5.2°C | -15.6°C | 18 mm | 3.8 | 9 h 12 | 5 | Good coverage |
| February | -2.4°C | -12.7°C | 20 mm | 3.4 | 10 h 23 | 5 | Good coverage |
| March | 4°C | -6.2°C | 39 mm | 4.9 | 11 h 47 | 5 | Good coverage |
| April | 13.3°C | 0.6°C | 81 mm | 8.2 | 13 h 23 | 28 | Good coverage |
| May | 20.8°C | 7.8°C | 102 mm | 10.1 | 14 h 44 | 61 | Good coverage |
| June | 26.1°C | 13.8°C | 120 mm | 10 | 15 h 29 | 73 | Good coverage |
| July | 27.9°C | 15.5°C | 89 mm | 7.6 | 15 h 12 | 75 | Good coverage |
| August | 26.6°C | 14.1°C | 85 mm | 6.9 | 14 h 01 | 79 | Good coverage |
| September | 23.1°C | 8.7°C | 72 mm | 6.5 | 12 h 27 | 77 | Good coverage |
| October | 15.7°C | 2.3°C | 51 mm | 5.7 | 10 h 55 | 45 | Good coverage |
| November | 5.8°C | -4.9°C | 33 mm | 3.7 | 9 h 33 | 5 | Good coverage |
| December | -2.4°C | -12.1°C | 19 mm | 4.1 | 8 h 53 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 19.4°C25 Jan 1981 | -35.6°C21 Jan 1970 | 38 mm30 Jan 2001 | 62 mm1996 · driest 0 mm in 1995 | 75 |
| February | 17.2°C23 Feb 2000 | -33.9°C11 Feb 1988 | 46 mm21 Feb 2011 | 83 mm1971 · driest 0 mm in 1987 | 75 |
| March | 28.3°C24 Mar 1939 | -31.7°C11 Mar 1948 | 45 mm23 Mar 1987 | 109 mm1979 · driest 3 mm in 1959 | 74 |
| April | 35.0°C19 Apr 1985 | -18.3°C4 Apr 1975 | 69 mm23 Apr 2001 | 213 mm2001 · driest 12 mm in 1959 | 74 |
| May | 37.8°C19 May 1998 | -6.1°C3 May 1967 | 89 mm18 May 2000 | 253 mm2012 · driest 13 mm in 1955 | 75 |
| June | 40.0°C15 Jun 1979 | 1.7°C9 Jun 1937 | 111 mm12 Jun 1937 | 297 mm2014 · driest 15 mm in 1988 | 76 |
| July | 40.6°C24 Jul 1941 | 4.4°C4 Jul 1967 | 89 mm22 Jul 2001 | 216 mm1968 · driest 7 mm in 1940 | 76 |
| August | 40.6°C1 Aug 1988 | 1.7°C22 Aug 2004 | 94 mm10 Aug 1994 | 198 mm1959 · driest 13 mm in 2011 | 76 |
| September | 38.3°C7 Sep 1976 | -6.7°C22 Sep 1974 | 102 mm23 Sep 2010 | 252 mm2010 · driest 1 mm in 2011 | 75 |
| October | 33.3°C5 Oct 1963 | -11.7°C19 Oct 1972 | 59 mm17 Oct 1968 | 165 mm1968 · driest 0 mm in 1952 | 74 |
| November | 28.3°C9 Nov 1999 | -26.7°C26 Nov 1996 | 55 mm7 Nov 1943 | 112 mm2001 · driest 1 mm in 1939 | 75 |
| December | 20.0°C7 Dec 1939 | -35.6°C23 Dec 1983 | 29 mm22 Dec 1968 | 64 mm2010 · driest 0 mm in 1979 | 75 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 31 | <1 | 5 |
| February | 0 | 0 | 27 | <1 | 4 |
| March | <1 | 0 | 26 | 1 | 3 |
| April | 2 | <1 | 14 | 3 | 2 |
| May | 9 | 3 | 1 | 4 | 0 |
| June | 19 | 7 | 0 | 4 | 0 |
| July | 25 | 10 | 0 | 3 | 0 |
| August | 22 | 6 | 0 | 3 | 0 |
| September | 13 | 3 | 2 | 2 | 0 |
| October | 4 | 1 | 12 | 2 | <1 |
| November | <1 | 0 | 25 | 1 | 2 |
| December | 0 | 0 | 31 | <1 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 12% | <1% | 8% | -9.5–-0.5°C |
| February | 0% | 12% | 2% | 8% | -6.7–1.9°C |
| March | 2% | 18% | 5% | 14% | -0.2–7.6°C |
| April | 19% | 25% | 7% | 28% | 10.0–17.3°C |
| May | 47% | 29% | 10% | 36% | 18.6–24.5°C |
| June | 64% | 31% | 11% | 37% | 24.3–28.7°C |
| July | 76% | 24% | 9% | 23% | 26.8–31.2°C |
| August | 75% | 23% | 10% | 21% | 25.2–29.5°C |
| September | 59% | 22% | 8% | 21% | 20.8–25.3°C |
| October | 29% | 17% | 5% | 15% | 13.7–18.9°C |
| November | 3% | 13% | 3% | 8% | 1.5–9.4°C |
| December | 0% | 12% | 1% | 6% | -6.3–1.7°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page