June
June · September · May
United States · 1991–2020
June leads for comfortable weather in Vivian: typically 27.1°C by day, 6.7°C at night, with 15 mm of rain. Based on measured 1991–2020 NOAA station history.
June · September · May
July · August · June
May · October · June
The weakest month is January, scoring 5 against June’s 75 — days reach only 3°C, 21° below the 24°C the score treats as ideal, and nights drop to -9.5°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 | 3°C | -9.5°C | 30 mm | 6.2 | 9 h 33 | 5 | Strong coverage |
| February | 5.8°C | -7.3°C | 22 mm | 5.5 | 10 h 35 | 5 | Strong coverage |
| March | 11.6°C | -3.5°C | 25 mm | 5.6 | 11 h 49 | 23 | Strong coverage |
| April | 15.2°C | -0.9°C | 27 mm | 5.3 | 13 h 14 | 40 | Strong coverage |
| May | 20.9°C | 3.1°C | 31 mm | 5.7 | 14 h 25 | 66 | Strong coverage |
| June | 27.1°C | 6.7°C | 15 mm | 3.1 | 15 h 04 | 75 | Strong coverage |
| July | 33°C | 10.4°C | 9 mm | 1.8 | 14 h 49 | 62 | Strong coverage |
| August | 31.9°C | 9°C | 8 mm | 1.6 | 13 h 47 | 63 | Strong coverage |
| September | 26.4°C | 4°C | 15 mm | 2.7 | 12 h 25 | 72 | Strong coverage |
| October | 18.3°C | -2.1°C | 19 mm | 3.3 | 11 h 03 | 50 | Strong coverage |
| November | 9.6°C | -6.2°C | 22 mm | 5 | 9 h 51 | 13 | Strong coverage |
| December | 3.2°C | -9.6°C | 30 mm | 6.3 | 9 h 16 | 5 | Strong 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 | 18.3°C31 Jan 2003 | -41.7°C21 Jan 1937 | 38 mm16 Jan 1893 | 141 mm1890 · driest 0 mm in 1919 | 134 |
| February | 21.1°C28 Feb 1905 | -40.6°C27 Feb 1890 | 43 mm11 Feb 1922 | 152 mm1901 · driest 0 mm in 1889 | 130 |
| March | 27.8°C20 Mar 2026 | -26.1°C2 Mar 1890 | 38 mm17 Mar 1903 | 98 mm1904 · driest 1 mm in 1988 | 130 |
| April | 31.1°C29 Apr 2020 | -18.9°C1 Apr 1936 | 84 mm22 Apr 1925 | 100 mm1900 · driest 0 mm in 1916 | 130 |
| May | 36.1°C28 May 2003 | -12.2°C6 May 1965 | 44 mm21 May 1971 | 104 mm1971 · driest 0 mm in 1954 | 131 |
| June | 40.0°C30 Jun 2013 | -11.1°C6 Jun 1914 | 38 mm3 Jun 1903 | 75 mm2009 · driest 0 mm in 1895 | 131 |
| July | 41.7°C24 Jul 1890 | -2.2°C11 Jul 1890 | 33 mm8 Jul 2001 | 60 mm1950 · driest 0 mm in 1889 | 133 |
| August | 41.7°C4 Aug 1978 | -6.7°C26 Aug 1992 | 105 mm27 Aug 1970 | 117 mm1970 · driest 0 mm in 1926 | 129 |
| September | 38.9°C6 Sep 2022 | -12.8°C26 Sep 1934 | 57 mm5 Sep 1978 | 82 mm1978 · driest 0 mm in 1922 | 129 |
| October | 33.3°C1 Oct 2010 | -17.8°C12 Oct 1891 | 41 mm24 Oct 2010 | 74 mm1889 · driest 0 mm in 1917 | 128 |
| November | 28.3°C7 Nov 1913 | -26.7°C29 Nov 1896 | 38 mm29 Nov 1898 | 90 mm1900 · driest 0 mm in 1914 | 131 |
| December | 18.3°C1 Dec 1995 | -40.6°C25 Dec 1924 | 41 mm3 Dec 1950 | 139 mm1891 · driest 0 mm in 1976 | 132 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 8 |
| February | 0 | 0 | 27 | <1 | 6 |
| March | 0 | 0 | 26 | <1 | 5 |
| April | 1 | <1 | 19 | <1 | 3 |
| May | 9 | 2 | 7 | <1 | <1 |
| June | 21 | 11 | 1 | <1 | 0 |
| July | 30 | 26 | 0 | <1 | 0 |
| August | 30 | 25 | <1 | <1 | 0 |
| September | 21 | 9 | 6 | <1 | 0 |
| October | 4 | <1 | 22 | <1 | <1 |
| November | 0 | 0 | 27 | <1 | 4 |
| December | 0 | 0 | 29 | <1 | 7 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 77); on 2011–2025 it is September (72). 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 | 0% | 18% | 2% | 18% | -1.3–6.7°C |
| February | <1% | 18% | 2% | 18% | 1.7–9.8°C |
| March | 5% | 17% | 1% | 14% | 7.2–14.1°C |
| April | 25% | 15% | 2% | 12% | 12.4–18.8°C |
| May | 56% | 16% | 2% | 15% | 17.4–24.5°C |
| June | 82% | 11% | 2% | 7% | 23.7–30.2°C |
| July | 94% | 6% | <1% | 2% | 31.0–35.2°C |
| August | 94% | 6% | <1% | 3% | 29.6–33.6°C |
| September | 84% | 8% | 1% | 5% | 22.9–28.5°C |
| October | 48% | 10% | 1% | 7% | 15.4–21.8°C |
| November | 4% | 15% | 2% | 14% | 6.7–13.3°C |
| December | 0% | 18% | 2% | 17% | -0.1–7.4°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