May
May · June · July
United States · 1991–2020
May leads for comfortable weather in Fillmore: typically 23.9°C by day, 10.3°C at night, with 11 mm of rain. Based on measured 1991–2020 NOAA station history.
May · June · July
August · July · September
May · April · October
The weakest month is January, scoring 57 against May’s 91 — nights drop to 4.9°C, and days reach only 20.6°C, 3° below the 24°C the score treats as ideal.
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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 20.6°C | 4.9°C | 111 mm | 6.4 | 14.6°C | 10 h 05 | 57 | Good coverage |
| February | 20.9°C | 6°C | 134 mm | 5.8 | 14.5°C | 10 h 53 | 57 | Good coverage |
| March | 21.7°C | 6.9°C | 79 mm | 4.3 | 14.4°C | 11 h 52 | 70 | Good coverage |
| April | 23.3°C | 7.5°C | 19 mm | 1.4 | 14.4°C | 13 h | 84 | Good coverage |
| May | 23.9°C | 10.3°C | 11 mm | 1 | 15.5°C | 13 h 56 | 91 | Good coverage |
| June | 25.1°C | 11.8°C | 3 mm | 0.3 | 17.2°C | 14 h 26 | 90 | Good coverage |
| July | 26.8°C | 13.6°C | 0 mm | 0.1 | 18.8°C | 14 h 15 | 88 | Good coverage |
| August | 28.1°C | 13.1°C | 0 mm | 0 | 19.4°C | 13 h 26 | 83 | Good coverage |
| September | 27.4°C | 12.3°C | 1 mm | 0.3 | 19.3°C | 12 h 21 | 84 | Good coverage |
| October | 25.5°C | 10.1°C | 18 mm | 1.2 | 18.5°C | 11 h 16 | 86 | Good coverage |
| November | 23.4°C | 6.5°C | 25 mm | 1.9 | 16.9°C | 10 h 19 | 83 | Good coverage |
| December | 21.2°C | 5°C | 65 mm | 3.5 | 15.3°C | 9 h 52 | 68 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 36.1°C31 Jan 2003 | -6.7°C6 Jan 1913 | 143 mm25 Jan 1969 | 473 mm1969 · driest 0 mm in 1948 | 88 |
| February | 33.3°C25 Feb 1954 | -5.0°C6 Feb 1899 | 165 mm17 Feb 1980 | 531 mm1998 · driest 0 mm in 1912 | 89 |
| March | 36.7°C10 Mar 1916 | -3.9°C3 Mar 1966 | 99 mm16 Mar 1952 | 300 mm1978 · driest 0 mm in 1997 | 86 |
| April | 40.6°C6 Apr 1989 | -1.1°C9 Apr 1953 | 89 mm17 Apr 2000 | 133 mm1965 · driest 0 mm in 2002 | 87 |
| May | 41.1°C25 May 1896 | 1.7°C6 May 1910 | 42 mm2 May 2003 | 88 mm1998 · driest 0 mm in 1997 | 87 |
| June | 42.2°C16 Jun 1917 | 1.7°C16 Jun 1895 | 16 mm5 Jun 1993 | 33 mm1993 · driest 0 mm in 1970 | 89 |
| July | 40.6°C1 Jul 1985 | 3.3°C4 Jul 1992 | 4 mm12 Jul 1992 | 4 mm1992 · driest 0 mm in 1956 | 86 |
| August | 40.6°C22 Aug 1972 | 2.2°C20 Aug 1991 | 21 mm19 Aug 1983 | 28 mm1977 · driest 0 mm in 1970 | 88 |
| September | 43.3°C19 Sep 1939 | 4.4°C22 Sep 1991 | 58 mm15 Sep 1910 | 103 mm1976 · driest 0 mm in 1972 | 85 |
| October | 42.2°C17 Oct 1958 | 0.0°C30 Oct 1976 | 64 mm1 Oct 1983 | 95 mm2004 · driest 0 mm in 1976 | 88 |
| November | 37.2°C5 Nov 1949 | -2.2°C30 Nov 1975 | 128 mm29 Nov 1970 | 263 mm1965 · driest 0 mm in 1903 | 89 |
| December | 37.2°C4 Dec 1958 | -5.6°C5 Dec 1898 | 130 mm4 Dec 1974 | 208 mm1971 · driest 0 mm in 1901 | 89 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 5 | <1 | 1 | 3 |
| February | 4 | 1 | <1 | 4 |
| March | 5 | 1 | <1 | 2 |
| April | 8 | 2 | <1 | <1 |
| May | 8 | 1 | 0 | <1 |
| June | 13 | 1 | 0 | <1 |
| July | 20 | 3 | 0 | 0 |
| August | 23 | 6 | 0 | 0 |
| September | 20 | 5 | 0 | 0 |
| October | 11 | 4 | 0 | <1 |
| November | 8 | 2 | <1 | <1 |
| December | 5 | <1 | 2 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 43% | 19% | 10% | 20% | 16.5–22.8°C |
| February | 50% | 18% | 10% | 17% | 18.1–22.9°C |
| March | 59% | 16% | 8% | 13% | 18.4–23.9°C |
| April | 76% | 8% | 3% | 5% | 20.8–25.3°C |
| May | 87% | 3% | 1% | 1% | 21.6–26.6°C |
| June | 97% | <1% | <1% | 0% | 23.3–27.4°C |
| July | 100% | <1% | 0% | 0% | 25.7–29.6°C |
| August | 99% | <1% | <1% | 0% | 26.0–30.1°C |
| September | 98% | 2% | <1% | <1% | 25.3–30.9°C |
| October | 92% | 4% | 1% | 2% | 23.5–28.2°C |
| November | 76% | 9% | 5% | 8% | 20.4–25.9°C |
| December | 53% | 12% | 6% | 10% | 17.9–23.1°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