May
May · September · June
United States · 1991–2020
May leads for comfortable weather in Compton: typically 24°C by day, 9.9°C at night, with 107 mm of rain. Based on measured 1991–2020 NOAA station history.
May · September · June
August · July · June
October · April · May
The weakest month is January, scoring 5 against May’s 74 — days reach only 6.9°C, 17° below the 24°C the score treats as ideal, and nights drop to -4.9°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 | 6.9°C | -4.9°C | 71 mm | 7 | 9 h 44 | 5 | Strong coverage |
| February | 9.4°C | -3.4°C | 63 mm | 6.7 | 10 h 41 | 11 | Strong coverage |
| March | 13.2°C | -0.2°C | 91 mm | 8.5 | 11 h 50 | 24 | Strong coverage |
| April | 20°C | 4.8°C | 87 mm | 9.4 | 13 h 09 | 55 | Strong coverage |
| May | 24°C | 9.9°C | 107 mm | 10 | 14 h 16 | 74 | Strong coverage |
| June | 28.1°C | 14.4°C | 124 mm | 9.1 | 14 h 52 | 67 | Strong coverage |
| July | 30.2°C | 16.6°C | 107 mm | 9 | 14 h 38 | 61 | Strong coverage |
| August | 29.2°C | 15.9°C | 97 mm | 8.5 | 13 h 40 | 67 | Strong coverage |
| September | 26.1°C | 12.4°C | 127 mm | 7.4 | 12 h 23 | 72 | Strong coverage |
| October | 20.5°C | 6.3°C | 79 mm | 6.6 | 11 h 07 | 64 | Strong coverage |
| November | 14.3°C | 1°C | 81 mm | 6.7 | 10 h 00 | 33 | Strong coverage |
| December | 9°C | -2.5°C | 76 mm | 7.5 | 9 h 28 | 9 | 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°C26 Jan 1950 | -23.3°C25 Jan 1948 | 100 mm14 Jan 1968 | 198 mm1978 · driest 5 mm in 1981 | 80 |
| February | 26.7°C28 Feb 1948 | -25.6°C5 Feb 1996 | 81 mm13 Feb 1972 | 177 mm1972 · driest 2 mm in 1968 | 81 |
| March | 32.2°C15 Mar 1990 | -18.9°C3 Mar 1980 | 105 mm1 Mar 1954 | 226 mm1994 · driest 26 mm in 1945 | 81 |
| April | 34.4°C19 Apr 1976 | -9.4°C10 Apr 1985 | 114 mm22 Apr 1992 | 198 mm1987 · driest 14 mm in 1950 | 81 |
| May | 36.1°C20 May 1996 | -5.0°C10 May 1947 | 103 mm14 May 2025 | 298 mm2025 · driest 22 mm in 1964 | 82 |
| June | 37.8°C30 Jun 2012 | -0.6°C8 Jun 1977 | 126 mm22 Jun 1972 | 275 mm2018 · driest 24 mm in 1999 | 81 |
| July | 40.6°C8 Jul 1988 | 1.1°C15 Jul 1987 | 74 mm4 Jul 1941 | 289 mm1941 · driest 22 mm in 1998 | 81 |
| August | 38.3°C31 Aug 1953 | 2.8°C29 Aug 1986 | 224 mm18 Aug 1955 | 495 mm1955 · driest 17 mm in 1957 | 82 |
| September | 38.9°C1 Sep 1953 | -2.2°C24 Sep 1974 | 239 mm6 Sep 1996 | 439 mm1996 · driest 13 mm in 1951 | 81 |
| October | 36.1°C1 Oct 1953 | -8.3°C21 Oct 1952 | 165 mm15 Oct 1942 | 315 mm1942 · driest 1 mm in 1963 | 82 |
| November | 29.4°C5 Nov 2003 | -14.4°C25 Nov 1970 | 112 mm3 Nov 1947 | 361 mm1985 · driest 14 mm in 2001 | 82 |
| December | 26.1°C7 Dec 1951 | -21.7°C22 Dec 1989 | 100 mm10 Dec 1992 | 194 mm1992 · driest 4 mm in 1965 | 81 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 2 | 2 |
| February | <1 | 0 | 20 | 2 | 2 |
| March | 2 | <1 | 17 | 3 | 1 |
| April | 7 | 1 | 6 | 3 | <1 |
| May | 15 | 4 | <1 | 4 | 0 |
| June | 25 | 11 | 0 | 4 | 0 |
| July | 29 | 18 | 0 | 4 | 0 |
| August | 28 | 13 | 0 | 3 | 0 |
| September | 18 | 7 | <1 | 3 | 0 |
| October | 7 | <1 | 3 | 2 | <1 |
| November | 1 | 0 | 14 | 3 | <1 |
| December | <1 | 0 | 20 | 2 | 1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 80); on 2011–2025 it is September (80). 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 | 3% | 23% | 7% | 22% | 3.4–10.5°C |
| February | 5% | 24% | 7% | 24% | 5.1–12.6°C |
| March | 16% | 27% | 8% | 30% | 9.5–17.2°C |
| April | 38% | 29% | 9% | 34% | 17.4–22.6°C |
| May | 57% | 33% | 11% | 42% | 22.0–26.8°C |
| June | 69% | 29% | 11% | 33% | 26.9–29.9°C |
| July | 69% | 30% | 11% | 38% | 28.5–32.2°C |
| August | 71% | 29% | 10% | 32% | 27.3–30.9°C |
| September | 71% | 25% | 10% | 24% | 24.0–28.2°C |
| October | 48% | 21% | 8% | 21% | 18.1–23.0°C |
| November | 17% | 23% | 8% | 22% | 11.7–16.9°C |
| December | 3% | 23% | 8% | 23% | 5.3–12.0°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