September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Saint Robert: typically 27.1°C by day, 13.1°C at night, with 108 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
July · August · June
October · April · May
The weakest month is January, scoring 5 against September’s 74 — days reach only 6.3°C, 18° below the 24°C the score treats as ideal, and nights drop to -5.7°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 | 6.3°C | -5.7°C | 68 mm | 5.3 | 9 h 48 | 5 | Strong coverage |
| February | 9.2°C | -3.8°C | 64 mm | 5.1 | 10 h 44 | 11 | Strong coverage |
| March | 14.6°C | 0.6°C | 100 mm | 7.7 | 11 h 50 | 30 | Strong coverage |
| April | 20.5°C | 6.5°C | 120 mm | 8.5 | 13 h 07 | 56 | Strong coverage |
| May | 24.6°C | 11.8°C | 135 mm | 9.8 | 14 h 11 | 72 | Strong coverage |
| June | 28.8°C | 16.8°C | 120 mm | 8.2 | 14 h 46 | 64 | Strong coverage |
| July | 31.2°C | 19°C | 111 mm | 6.9 | 14 h 32 | 55 | Strong coverage |
| August | 31.1°C | 18.1°C | 107 mm | 6.4 | 13 h 37 | 58 | Strong coverage |
| September | 27.1°C | 13.1°C | 108 mm | 5.9 | 12 h 23 | 74 | Strong coverage |
| October | 21.5°C | 6.7°C | 90 mm | 6.3 | 11 h 09 | 66 | Strong coverage |
| November | 14.4°C | 1.2°C | 98 mm | 6.7 | 10 h 05 | 31 | Strong coverage |
| December | 8.3°C | -3.5°C | 77 mm | 5.4 | 9 h 33 | 7 | 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 | 26.1°C7 Jan 1965 | -30.6°C20 Jan 1985 | 89 mm5 Jan 2005 | 185 mm2005 · driest 2 mm in 1986 | 81 |
| February | 29.4°C13 Feb 1962 | -30.6°C2 Feb 1951 | 123 mm24 Feb 2001 | 194 mm2001 · driest 5 mm in 2006 | 78 |
| March | 31.1°C21 Mar 2017 | -25.6°C5 Mar 1960 | 97 mm25 Mar 1945 | 310 mm1945 · driest 17 mm in 1956 | 78 |
| April | 37.2°C24 Apr 1965 | -10.6°C11 Apr 1989 | 111 mm30 Apr 2017 | 300 mm2017 · driest 10 mm in 1949 | 80 |
| May | 35.6°C13 May 2022 | -4.4°C3 May 1989 | 105 mm31 May 1956 | 283 mm1981 · driest 8 mm in 2005 | 79 |
| June | 40.0°C26 Jun 1954 | 1.7°C1 Jun 1972 | 115 mm17 Jun 1985 | 376 mm1985 · driest 11 mm in 1944 | 80 |
| July | 46.1°C14 Jul 1954 | 5.6°C6 Jul 1972 | 132 mm22 Jul 2019 | 325 mm2015 · driest 6 mm in 2025 | 80 |
| August | 41.7°C19 Aug 1962 | 2.2°C29 Aug 1986 | 150 mm21 Aug 2007 | 270 mm1946 · driest 14 mm in 1962 | 81 |
| September | 40.0°C28 Sep 1953 | -4.4°C24 Sep 1989 | 133 mm4 Sep 2008 | 360 mm1945 · driest 5 mm in 2017 | 80 |
| October | 36.1°C10 Oct 1963 | -11.7°C29 Oct 1952 | 105 mm9 Oct 2009 | 282 mm2009 · driest 6 mm in 2010 | 81 |
| November | 30.6°C9 Nov 2005 | -19.4°C8 Nov 1951 | 131 mm18 Nov 2015 | 278 mm2015 · driest 5 mm in 1949 | 80 |
| December | 26.1°C24 Dec 1955 | -31.7°C23 Dec 1989 | 157 mm27 Dec 2015 | 295 mm2015 · driest 5 mm in 1947 | 82 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 24 | 2 | 1 |
| February | <1 | 0 | 21 | 2 | <1 |
| March | 3 | 0 | 15 | 4 | <1 |
| April | 8 | 1 | 4 | 4 | <1 |
| May | 17 | 4 | <1 | 4 | 0 |
| June | 26 | 13 | 0 | 4 | 0 |
| July | 29 | 21 | 0 | 3 | 0 |
| August | 30 | 19 | 0 | 3 | 0 |
| September | 21 | 10 | <1 | 3 | 0 |
| October | 10 | 2 | 4 | 3 | 0 |
| November | 2 | <1 | 14 | 3 | <1 |
| December | <1 | 0 | 23 | 2 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 4% | 18% | 6% | 15% | 3.7–10.6°C |
| February | 9% | 21% | 7% | 20% | 5.2–13.8°C |
| March | 24% | 27% | 11% | 29% | 12.0–18.7°C |
| April | 46% | 30% | 11% | 35% | 18.6–23.8°C |
| May | 60% | 32% | 14% | 41% | 22.9–27.4°C |
| June | 71% | 28% | 12% | 32% | 26.9–31.2°C |
| July | 78% | 22% | 10% | 20% | 29.8–33.9°C |
| August | 79% | 21% | 9% | 20% | 29.4–34.3°C |
| September | 74% | 22% | 10% | 21% | 24.6–30.8°C |
| October | 56% | 22% | 10% | 24% | 20.0–24.4°C |
| November | 23% | 23% | 9% | 22% | 11.1–17.8°C |
| December | 5% | 20% | 7% | 19% | 5.1–12.2°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