September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Robb: typically 27.1°C by day, 9.3°C at night, with 31 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
June · August · July
October · September · May
The weakest month is January, scoring 5 against September’s 79 — days reach only 6.2°C, 18° below the 24°C the score treats as ideal, and nights drop to -9.2°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 | 6.2°C | -9.2°C | 10 mm | 1.9 | 9 h 36 | 5 | Strong coverage |
| February | 7.7°C | -7.9°C | 14 mm | 2.8 | 10 h 37 | 5 | Strong coverage |
| March | 13.5°C | -3.5°C | 22 mm | 3.4 | 11 h 49 | 32 | Strong coverage |
| April | 17.9°C | 0.8°C | 46 mm | 5.8 | 13 h 12 | 50 | Strong coverage |
| May | 22.9°C | 7.1°C | 73 mm | 7.8 | 14 h 22 | 73 | Strong coverage |
| June | 29.4°C | 13.1°C | 59 mm | 7.2 | 15 h 00 | 71 | Strong coverage |
| July | 32.5°C | 16.1°C | 87 mm | 7.4 | 14 h 45 | 59 | Strong coverage |
| August | 31.3°C | 14.8°C | 64 mm | 6.4 | 13 h 45 | 69 | Strong coverage |
| September | 27.1°C | 9.3°C | 31 mm | 4.1 | 12 h 24 | 79 | Strong coverage |
| October | 19.5°C | 1.7°C | 35 mm | 3.9 | 11 h 04 | 60 | Strong coverage |
| November | 12.2°C | -4.2°C | 15 mm | 2.7 | 9 h 54 | 26 | Strong coverage |
| December | 6.4°C | -8.8°C | 10 mm | 2.3 | 9 h 20 | 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 | 26.7°C14 Jan 1928 | -33.3°C12 Jan 1912 | 28 mm22 Jan 2018 | 46 mm1992 · driest 0 mm in 1901 | 119 |
| February | 26.7°C3 Feb 2020 | -35.6°C12 Feb 1899 | 51 mm2 Feb 2016 | 61 mm2016 · driest 0 mm in 1977 | 118 |
| March | 31.1°C29 Mar 1967 | -31.1°C3 Mar 1960 | 73 mm14 Mar 2021 | 139 mm1981 · driest 0 mm in 1953 | 117 |
| April | 34.4°C16 Apr 2002 | -20.6°C2 Apr 1936 | 168 mm27 Apr 1947 | 200 mm1947 · driest 1 mm in 1893 | 120 |
| May | 39.4°C1 May 1928 | -12.2°C3 May 1907 | 91 mm30 May 1982 | 210 mm1982 · driest 0 mm in 1894 | 122 |
| June | 43.3°C23 Jun 1954 | -3.9°C3 Jun 1954 | 81 mm30 Jun 1962 | 278 mm1962 · driest 4 mm in 1924 | 124 |
| July | 44.4°C11 Jul 1954 | 3.9°C4 Jul 1915 | 118 mm24 Jul 2020 | 211 mm1932 · driest 3 mm in 1934 | 119 |
| August | 43.3°C20 Aug 1983 | 1.1°C25 Aug 1910 | 86 mm31 Aug 1901 | 149 mm1915 · driest 5 mm in 1957 | 120 |
| September | 40.6°C5 Sep 1983 | -7.8°C21 Sep 1983 | 68 mm21 Sep 1902 | 139 mm1942 · driest 0 mm in 1957 | 119 |
| October | 35.6°C3 Oct 1967 | -17.8°C29 Oct 1917 | 106 mm19 Oct 1908 | 115 mm1908 · driest 0 mm in 1950 | 121 |
| November | 32.2°C10 Nov 1927 | -26.1°C28 Nov 1976 | 39 mm4 Nov 1922 | 60 mm1946 · driest 0 mm in 1910 | 119 |
| December | 25.6°C17 Dec 1939 | -36.1°C23 Dec 1989 | 45 mm4 Dec 1913 | 95 mm1913 · driest 0 mm in 1980 | 119 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 2 |
| February | <1 | 0 | 27 | <1 | 3 |
| March | 2 | <1 | 24 | <1 | 3 |
| April | 6 | 1 | 13 | 1 | 1 |
| May | 14 | 5 | 2 | 2 | <1 |
| June | 24 | 15 | 0 | 2 | 0 |
| July | 29 | 23 | 0 | 3 | 0 |
| August | 28 | 20 | 0 | 2 | 0 |
| September | 21 | 12 | <1 | 1 | <1 |
| October | 8 | 3 | 12 | 1 | <1 |
| November | 2 | 0 | 25 | <1 | 2 |
| December | 0 | 0 | 30 | <1 | 3 |
The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 76); 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 | 2% | 6% | <1% | 1% | 2.4–10.3°C |
| February | 7% | 9% | <1% | 3% | 2.5–13.1°C |
| March | 22% | 11% | 2% | 6% | 9.6–17.0°C |
| April | 44% | 19% | 6% | 18% | 15.3–21.7°C |
| May | 61% | 25% | 8% | 27% | 20.8–26.7°C |
| June | 74% | 24% | 8% | 23% | 26.6–32.7°C |
| July | 78% | 22% | 8% | 20% | 30.6–35.6°C |
| August | 80% | 19% | 6% | 15% | 29.7–34.6°C |
| September | 80% | 13% | 4% | 9% | 24.7–30.3°C |
| October | 59% | 10% | 3% | 5% | 17.6–24.7°C |
| November | 19% | 7% | 1% | 3% | 8.6–16.1°C |
| December | 3% | 7% | <1% | 3% | 3.4–10.8°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