September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Desert Mound: typically 26.9°C by day, 8°C at night, with 19 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · May · September
The weakest month is January, scoring 5 against September’s 78 — days reach only 6°C, 18° below the 24°C the score treats as ideal, and nights drop to -7.8°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 | 6°C | -7.8°C | 21 mm | 4.1 | 9 h 49 | 5 | Strong coverage |
| February | 8.4°C | -5.7°C | 25 mm | 5 | 10 h 44 | 9 | Strong coverage |
| March | 13.4°C | -2.5°C | 31 mm | 5.5 | 11 h 50 | 31 | Strong coverage |
| April | 17°C | 0.2°C | 26 mm | 5 | 13 h 07 | 48 | Strong coverage |
| May | 22.7°C | 4.6°C | 24 mm | 4.2 | 14 h 11 | 76 | Strong coverage |
| June | 29.2°C | 9.6°C | 12 mm | 2 | 14 h 45 | 73 | Strong coverage |
| July | 32.6°C | 14.2°C | 25 mm | 4.2 | 14 h 32 | 69 | Strong coverage |
| August | 31.4°C | 13.4°C | 22 mm | 4 | 13 h 37 | 72 | Strong coverage |
| September | 26.9°C | 8°C | 19 mm | 3.3 | 12 h 23 | 78 | Strong coverage |
| October | 19.4°C | 1.3°C | 31 mm | 3.8 | 11 h 09 | 60 | Strong coverage |
| November | 11.8°C | -4.4°C | 21 mm | 4 | 10 h 05 | 24 | Strong coverage |
| December | 5.6°C | -8.3°C | 22 mm | 4.4 | 9 h 34 | 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 | 21.1°C9 Jan 1990 | -32.2°C31 Jan 1951 | 31 mm14 Jan 1980 | 76 mm1980 · driest 0 mm in 2022 | 78 |
| February | 22.8°C25 Feb 1986 | -31.1°C6 Feb 1989 | 41 mm6 Feb 1965 | 61 mm1980 · driest 0 mm in 1972 | 78 |
| March | 30.0°C20 Mar 2026 | -18.3°C9 Mar 1958 | 33 mm18 Mar 1961 | 81 mm2006 · driest 0 mm in 1972 | 78 |
| April | 30.0°C23 Apr 2012 | -14.4°C2 Apr 1975 | 27 mm2 Apr 1974 | 80 mm1988 · driest 2 mm in 1959 | 78 |
| May | 35.6°C29 May 1984 | -8.9°C1 May 2011 | 32 mm14 May 1977 | 101 mm2011 · driest 0 mm in 1974 | 78 |
| June | 38.9°C16 Jun 2021 | -2.8°C14 Jun 2001 | 41 mm23 Jun 2000 | 65 mm2005 · driest 0 mm in 1974 | 78 |
| July | 40.6°C7 Jul 1989 | 4.4°C6 Jul 1982 | 57 mm27 Jul 2013 | 134 mm2013 · driest 0 mm in 1948 | 79 |
| August | 38.3°C17 Aug 2020 | 1.7°C31 Aug 2005 | 51 mm19 Aug 1963 | 111 mm1984 · driest 0 mm in 1985 | 78 |
| September | 37.2°C5 Sep 2020 | -5.0°C18 Sep 1965 | 53 mm24 Sep 1967 | 117 mm1967 · driest 0 mm in 1984 | 78 |
| October | 31.7°C4 Oct 2024 | -21.7°C30 Oct 1971 | 36 mm13 Oct 1996 | 92 mm2004 · driest 0 mm in 2007 | 78 |
| November | 24.4°C5 Nov 2020 | -24.4°C25 Nov 2010 | 26 mm14 Nov 1987 | 67 mm2019 · driest 0 mm in 2006 | 78 |
| December | 20.0°C3 Dec 1977 | -30.6°C23 Dec 1990 | 27 mm13 Dec 1995 | 56 mm2010 · driest 0 mm in 1976 | 78 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 6 |
| February | 0 | 0 | 25 | <1 | 5 |
| March | <1 | 0 | 24 | <1 | 3 |
| April | 2 | 0 | 16 | <1 | 4 |
| May | 12 | 2 | 5 | <1 | <1 |
| June | 26 | 16 | <1 | <1 | <1 |
| July | 31 | 26 | 0 | <1 | 0 |
| August | 30 | 24 | 0 | <1 | 0 |
| September | 22 | 7 | 1 | <1 | 0 |
| October | 5 | <1 | 13 | 1 | 2 |
| November | 0 | 0 | 26 | <1 | 3 |
| December | 0 | 0 | 29 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 12% | 1% | 8% | 2.7–8.8°C |
| February | 1% | 15% | 2% | 13% | 5.0–11.7°C |
| March | 9% | 18% | 3% | 18% | 9.1–15.5°C |
| April | 33% | 16% | 2% | 12% | 14.1–19.7°C |
| May | 69% | 13% | 2% | 10% | 19.4–25.1°C |
| June | 91% | 7% | 1% | 3% | 26.3–31.5°C |
| July | 86% | 14% | 2% | 14% | 30.9–34.0°C |
| August | 85% | 15% | 2% | 12% | 29.6–32.3°C |
| September | 85% | 10% | 2% | 7% | 24.9–28.5°C |
| October | 54% | 12% | 3% | 9% | 16.8–22.5°C |
| November | 8% | 13% | 2% | 10% | 8.7–14.9°C |
| December | 0% | 13% | 1% | 8% | 3.2–9.8°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