September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Loyall: typically 26.1°C by day, 13.7°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · April · May
The weakest month is January, scoring 5 against September’s 79 — days reach only 7.2°C, 17° below the 24°C the score treats as ideal, and nights drop to -3.6°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 | 7.2°C | -3.6°C | 108 mm | 9.7 | 9 h 53 | 5 | Strong coverage |
| February | 9.1°C | -2.5°C | 94 mm | 8.8 | 10 h 47 | 6 | Strong coverage |
| March | 14.3°C | 0.9°C | 128 mm | 11.3 | 11 h 51 | 22 | Strong coverage |
| April | 20.3°C | 5.7°C | 117 mm | 9.9 | 13 h 05 | 53 | Good coverage |
| May | 24.2°C | 11.1°C | 115 mm | 10.7 | 14 h 07 | 74 | Strong coverage |
| June | 27.9°C | 15.9°C | 117 mm | 10.5 | 14 h 40 | 67 | Good coverage |
| July | 29.2°C | 17.9°C | 128 mm | 11.3 | 14 h 27 | 57 | Good coverage |
| August | 29.1°C | 17.5°C | 109 mm | 8.9 | 13 h 34 | 63 | Strong coverage |
| September | 26.1°C | 13.7°C | 90 mm | 7.4 | 12 h 22 | 79 | Strong coverage |
| October | 20.5°C | 6.9°C | 76 mm | 7.5 | 11 h 11 | 64 | Good coverage |
| November | 14.4°C | 1.2°C | 93 mm | 8.2 | 10 h 09 | 31 | Strong coverage |
| December | 9.1°C | -1.5°C | 124 mm | 10.8 | 9 h 39 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.3°C23 Jan 1999 | -28.3°C21 Jan 1985 | 73 mm16 Jan 1954 | 263 mm1972 · driest 26 mm in 1981 | 63 |
| February | 26.1°C27 Feb 1977 | -25.6°C1 Feb 1966 | 78 mm15 Feb 2003 | 244 mm1956 · driest 17 mm in 1968 | 63 |
| March | 29.4°C26 Mar 2007 | -20.0°C4 Mar 1980 | 107 mm12 Mar 1963 | 313 mm1975 · driest 39 mm in 1988 | 64 |
| April | 32.2°C20 Apr 1976 | -7.2°C1 Apr 1969 | 97 mm5 Apr 1977 | 280 mm1998 · driest 25 mm in 1976 | 63 |
| May | 33.3°C22 May 1970 | -3.9°C10 May 1977 | 76 mm16 May 1963 | 260 mm1984 · driest 30 mm in 2015 | 64 |
| June | 39.4°C30 Jun 2012 | 1.1°C1 Jun 1966 | 81 mm4 Jun 1970 | 260 mm1989 · driest 22 mm in 1988 | 63 |
| July | 38.3°C1 Jul 2012 | 0.6°C7 Jul 1993 | 83 mm26 Jul 1977 | 227 mm1979 · driest 30 mm in 1957 | 63 |
| August | 38.3°C22 Aug 1983 | 5.6°C31 Aug 1987 | 90 mm20 Aug 1956 | 217 mm1964 · driest 22 mm in 2007 | 64 |
| September | 37.2°C6 Sep 1954 | -1.7°C30 Sep 2003 | 95 mm6 Sep 2011 | 222 mm2004 · driest 10 mm in 1978 | 64 |
| October | 33.3°C8 Oct 2007 | -7.8°C27 Oct 1962 | 128 mm2 Oct 1977 | 234 mm1977 · driest 2 mm in 1963 | 64 |
| November | 28.3°C4 Nov 2003 | -15.6°C30 Nov 1976 | 88 mm28 Nov 1973 | 219 mm1973 · driest 21 mm in 2012 | 64 |
| December | 25.6°C4 Dec 1982 | -23.3°C14 Dec 1962 | 72 mm5 Dec 1993 | 278 mm1991 · driest 8 mm in 1965 | 64 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 23 | 4 | 2 |
| February | 0 | 0 | 21 | 3 | 1 |
| March | 2 | 0 | 15 | 4 | <1 |
| April | 8 | <1 | 4 | 4 | 0 |
| May | 16 | 2 | 0 | 4 | 0 |
| June | 24 | 9 | 0 | 4 | 0 |
| July | 29 | 14 | 0 | 5 | 0 |
| August | 29 | 13 | 0 | 4 | 0 |
| September | 20 | 6 | 0 | 3 | 0 |
| October | 7 | <1 | 3 | 3 | 0 |
| November | <1 | 0 | 14 | 3 | <1 |
| December | 0 | 0 | 21 | 4 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 34% | 12% | 45% | 3.5–9.9°C |
| February | 2% | 35% | 12% | 45% | 5.7–12.2°C |
| March | 15% | 36% | 13% | 49% | 11.1–17.4°C |
| April | 41% | 33% | 13% | 41% | 17.8–22.5°C |
| May | 57% | 34% | 13% | 43% | 22.4–26.9°C |
| June | 66% | 33% | 14% | 42% | 26.7–29.8°C |
| July | 66% | 35% | 15% | 44% | 28.5–31.4°C |
| August | 71% | 30% | 12% | 33% | 28.0–31.1°C |
| September | 72% | 24% | 10% | 26% | 24.6–28.4°C |
| October | 49% | 24% | 8% | 25% | 18.6–22.6°C |
| November | 16% | 30% | 11% | 39% | 12.1–17.2°C |
| December | 2% | 33% | 13% | 45% | 5.7–11.9°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