September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Little Ponderosa: typically 29.2°C by day, 13.2°C at night, with 38 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
September · August · June
April · October · May
The weakest month is January, scoring 12 against September’s 79 — days reach only 9°C, 15° below the 24°C the score treats as ideal, and nights drop to -6.4°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 | 9°C | -6.4°C | 11 mm | 1.7 | 9 h 53 | 12 | Strong coverage |
| February | 11.1°C | -5°C | 10 mm | 1.9 | 10 h 46 | 21 | Strong coverage |
| March | 16.4°C | -0.5°C | 30 mm | 3.5 | 11 h 51 | 47 | Strong coverage |
| April | 21.1°C | 4.2°C | 43 mm | 4.3 | 13 h 05 | 69 | Strong coverage |
| May | 26.4°C | 10.3°C | 65 mm | 5.5 | 14 h 07 | 77 | Strong coverage |
| June | 31.9°C | 16.2°C | 81 mm | 6.1 | 14 h 41 | 63 | Strong coverage |
| July | 34.3°C | 18.8°C | 79 mm | 6.4 | 14 h 28 | 50 | Strong coverage |
| August | 33.3°C | 18°C | 63 mm | 5.4 | 13 h 34 | 58 | Strong coverage |
| September | 29.2°C | 13.2°C | 38 mm | 3.7 | 12 h 22 | 79 | Strong coverage |
| October | 22.3°C | 5.9°C | 54 mm | 3.5 | 11 h 11 | 75 | Strong coverage |
| November | 15°C | -1.2°C | 18 mm | 2.3 | 10 h 08 | 41 | Strong coverage |
| December | 8.9°C | -5.7°C | 20 mm | 2.4 | 9 h 38 | 13 | 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 | 29.4°C5 Jan 1927 | -28.3°C7 Jan 1912 | 36 mm28 Jan 2020 | 50 mm2020 · driest 0 mm in 1908 | 120 |
| February | 32.2°C11 Feb 2017 | -28.9°C27 Feb 1930 | 45 mm21 Feb 1990 | 101 mm1911 · driest 0 mm in 1970 | 120 |
| March | 38.9°C27 Mar 2026 | -24.4°C7 Mar 1920 | 56 mm14 Mar 2021 | 229 mm1973 · driest 0 mm in 1910 | 120 |
| April | 39.4°C23 Apr 1989 | -12.2°C2 Apr 1936 | 66 mm18 Apr 1970 | 202 mm1915 · driest 0 mm in 1935 | 122 |
| May | 41.1°C29 May 1909 | -6.7°C1 May 1909 | 203 mm22 May 1991 | 251 mm2015 · driest 1 mm in 1966 | 122 |
| June | 45.6°C25 Jun 1980 | 3.3°C2 Jun 1917 | 127 mm12 Jun 2015 | 205 mm1962 · driest 0 mm in 1933 | 122 |
| July | 45.0°C1 Jul 1933 | 8.9°C3 Jul 1924 | 100 mm4 Jul 2006 | 301 mm1961 · driest 0 mm in 2012 | 121 |
| August | 43.9°C13 Aug 1936 | 4.4°C14 Aug 1894 | 86 mm24 Aug 1933 | 172 mm1974 · driest 3 mm in 1990 | 120 |
| September | 42.2°C4 Sep 1945 | -1.7°C30 Sep 1985 | 89 mm10 Sep 1917 | 162 mm1985 · driest 0 mm in 1956 | 119 |
| October | 37.2°C17 Oct 2016 | -13.3°C31 Oct 2019 | 171 mm1 Oct 1998 | 270 mm1998 · driest 0 mm in 1975 | 119 |
| November | 32.2°C1 Nov 2016 | -18.9°C28 Nov 1976 | 56 mm28 Nov 1909 | 114 mm1909 · driest 0 mm in 1936 | 120 |
| December | 29.4°C24 Dec 1955 | -26.1°C19 Dec 2016 | 72 mm30 Dec 2006 | 122 mm2006 · driest 0 mm in 1910 | 119 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 29 | <1 | 2 |
| February | 1 | <1 | 24 | <1 | 2 |
| March | 5 | <1 | 17 | 1 | 1 |
| April | 11 | 4 | 5 | 2 | <1 |
| May | 20 | 10 | <1 | 2 | 0 |
| June | 27 | 20 | 0 | 3 | 0 |
| July | 30 | 27 | 0 | 3 | 0 |
| August | 29 | 25 | 0 | 2 | 0 |
| September | 24 | 16 | 0 | 1 | 0 |
| October | 12 | 5 | 4 | 2 | <1 |
| November | 3 | <1 | 18 | <1 | <1 |
| December | <1 | 0 | 29 | <1 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 6% | 6% | <1% | 2% | 4.8–12.7°C |
| February | 16% | 9% | 1% | 4% | 7.1–15.9°C |
| March | 37% | 11% | 3% | 7% | 12.5–20.1°C |
| April | 59% | 15% | 4% | 11% | 18.5–24.8°C |
| May | 71% | 22% | 8% | 23% | 23.1–29.3°C |
| June | 78% | 21% | 8% | 18% | 29.1–34.6°C |
| July | 80% | 20% | 8% | 18% | 33.0–37.3°C |
| August | 81% | 18% | 7% | 13% | 31.4–36.1°C |
| September | 83% | 14% | 5% | 9% | 27.1–32.4°C |
| October | 68% | 11% | 4% | 8% | 20.2–26.5°C |
| November | 29% | 9% | 2% | 5% | 12.0–18.3°C |
| December | 7% | 7% | 1% | 3% | 5.9–12.8°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