May
May · September · October
United States · 1991–2020
May leads for comfortable weather in Tontitown: typically 24.4°C by day, 13.6°C at night, with 145 mm of rain. Based on measured 1991–2020 NOAA station history.
May · September · October
July · August · June
October · April · March
The weakest month is January, scoring 11 against May’s 75 — days reach only 8°C, 16° below the 24°C the score treats as ideal, and nights drop to -3°C.
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 | 8°C | -3°C | 56 mm | 4 | 9 h 57 | 11 | Good coverage |
| February | 11°C | -0.8°C | 59 mm | 5.4 | 10 h 49 | 23 | Good coverage |
| March | 15°C | 3.1°C | 99 mm | 6.6 | 11 h 51 | 37 | Good coverage |
| April | 20.7°C | 8.7°C | 120 mm | 8.2 | 13 h 04 | 61 | Good coverage |
| May | 24.4°C | 13.6°C | 145 mm | 9.4 | 14 h 04 | 75 | Good coverage |
| June | 28.9°C | 18.3°C | 99 mm | 7.6 | 14 h 36 | 65 | Good coverage |
| July | 31.5°C | 20.9°C | 101 mm | 6.2 | 14 h 24 | 53 | Good coverage |
| August | 31.7°C | 20.1°C | 89 mm | 6 | 13 h 32 | 55 | Good coverage |
| September | 27.5°C | 15.3°C | 108 mm | 6 | 12 h 22 | 75 | Good coverage |
| October | 21.4°C | 8.9°C | 103 mm | 6.5 | 11 h 12 | 68 | Strong coverage |
| November | 14.5°C | 3.1°C | 93 mm | 5.5 | 10 h 12 | 37 | Good coverage |
| December | 9.9°C | -0.8°C | 75 mm | 4.8 | 9 h 42 | 18 | Good coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 24.4°C24 Jan 1943 | -30.6°C22 Jan 1930 | 104 mm27 Jan 1916 | 290 mm1916 · driest 0 mm in 2010 | 125 |
| February | 30.0°C23 Feb 1996 | -31.1°C12 Feb 1899 | 118 mm9 Feb 1966 | 220 mm1945 · driest 1 mm in 2007 | 124 |
| March | 35.6°C21 Mar 1907 | -23.9°C12 Mar 1948 | 109 mm19 Mar 2008 | 383 mm1898 · driest 5 mm in 2007 | 128 |
| April | 35.6°C29 Apr 1902 | -7.8°C5 Apr 1920 | 127 mm30 Apr 1893 | 329 mm1927 · driest 12 mm in 1989 | 129 |
| May | 35.0°C31 May 1934 | -2.2°C4 May 1954 | 188 mm10 May 1950 | 381 mm1943 · driest 17 mm in 1911 | 129 |
| June | 40.0°C23 Jun 1933 | 3.9°C5 Jun 1983 | 198 mm16 Jun 1982 | 362 mm2000 · driest 3 mm in 1953 | 129 |
| July | 43.9°C14 Jul 1954 | 8.9°C31 Jul 1971 | 244 mm25 Jul 1960 | 355 mm1960 · driest 6 mm in 1930 | 128 |
| August | 42.8°C10 Aug 1936 | 6.7°C31 Aug 1915 | 140 mm14 Aug 2002 | 324 mm1915 · driest 0 mm in 2007 | 129 |
| September | 40.6°C2 Sep 1939 | -1.7°C30 Sep 1984 | 118 mm18 Sep 1949 | 292 mm1986 · driest 0 mm in 2022 | 126 |
| October | 35.6°C6 Oct 1909 | -8.3°C30 Oct 1917 | 127 mm9 Oct 2009 | 331 mm1941 · driest 1 mm in 1963 | 128 |
| November | 32.2°C4 Nov 1909 | -15.0°C17 Nov 1959 | 98 mm5 Nov 1994 | 310 mm1946 · driest 2 mm in 1910 | 124 |
| December | 25.6°C31 Dec 1951 | -24.4°C23 Dec 1989 | 182 mm27 Dec 2015 | 323 mm2015 · driest 0 mm in 2009 | 124 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 20 | 2 |
| February | <1 | <1 | 15 | 2 |
| March | 2 | <1 | 9 | 3 |
| April | 7 | <1 | 2 | 3 |
| May | 16 | 2 | 0 | 5 |
| June | 24 | 12 | 0 | 4 |
| July | 28 | 22 | 0 | 3 |
| August | 28 | 20 | 0 | 3 |
| September | 21 | 10 | 0 | 3 |
| October | 8 | <1 | 1 | 2 |
| November | <1 | 0 | 10 | 3 |
| December | 0 | 0 | 17 | 3 |
The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 81); on 2011–2025 it is September (78). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 3% | 18% | 6% | 15% | 5.5–11.6°C |
| February | 8% | 21% | 7% | 19% | 7.4–14.4°C |
| March | 25% | 23% | 10% | 24% | 12.1–19.4°C |
| April | 48% | 28% | 13% | 30% | 19.2–23.6°C |
| May | 63% | 30% | 14% | 38% | 22.8–26.9°C |
| June | 73% | 27% | 13% | 28% | 27.3–32.0°C |
| July | 80% | 20% | 9% | 18% | 30.2–34.3°C |
| August | 80% | 20% | 9% | 19% | 29.6–35.1°C |
| September | 76% | 21% | 10% | 20% | 25.8–31.0°C |
| October | 60% | 20% | 9% | 21% | 20.1–25.0°C |
| November | 23% | 19% | 9% | 16% | 12.6–18.1°C |
| December | 4% | 18% | 7% | 15% | 7.5–12.8°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