May
May · October · September
United States · 1991–2020
May leads for comfortable weather in Boulevard: typically 24°C by day, 8.3°C at night, with 5 mm of rain. Based on measured 1991–2020 NOAA station history.
May · October · September
September · August · July
October · April · May
The weakest month is January, scoring 35 against May’s 88 — days reach only 13.5°C, 10° below the 24°C the score treats as ideal, and nights drop to 3.3°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 | 13.5°C | 3.3°C | 81 mm | 5.7 | 10 h 13 | 35 | Good coverage |
| February | 13.7°C | 2.9°C | 65 mm | 5.8 | 10 h 58 | 38 | Good coverage |
| March | 16.4°C | 3.9°C | 55 mm | 5 | 11 h 53 | 50 | Good coverage |
| April | 19°C | 5°C | 22 mm | 3 | 12 h 56 | 66 | Good coverage |
| May | 24°C | 8.3°C | 5 mm | 0.9 | 13 h 49 | 88 | Good coverage |
| June | 28.7°C | 12.1°C | 1 mm | 0.3 | 14 h 17 | 79 | Good coverage |
| July | 32.5°C | 16.6°C | 11 mm | 1.1 | 14 h 06 | 69 | Good coverage |
| August | 32.6°C | 17.1°C | 19 mm | 1.7 | 13 h 21 | 68 | Good coverage |
| September | 29.7°C | 14.5°C | 8 mm | 1.1 | 12 h 20 | 80 | Good coverage |
| October | 23.2°C | 9.7°C | 14 mm | 1.4 | 11 h 19 | 88 | Good coverage |
| November | 17.4°C | 6°C | 20 mm | 2.7 | 10 h 26 | 62 | Good coverage |
| December | 13.6°C | 3°C | 49 mm | 4.8 | 10 h 01 | 41 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.7°C13 Jan 1996 | -9.4°C17 Jan 1987 | 97 mm7 Jan 1993 | 343 mm1993 · driest 3 mm in 2009 | 30 |
| February | 27.8°C22 Feb 1999 | -7.2°C15 Feb 2008 | 63 mm18 Feb 2011 | 128 mm2011 · driest 0 mm in 1984 | 31 |
| March | 30.6°C30 Mar 2002 | -3.3°C5 Mar 2010 | 76 mm1 Mar 1983 | 234 mm1983 · driest 0 mm in 2009 | 31 |
| April | 35.0°C25 Apr 2004 | -3.3°C9 Apr 2011 | 34 mm14 Apr 2003 | 53 mm1999 · driest 0 mm in 2009 | 32 |
| May | 40.0°C27 May 2000 | -1.1°C24 May 2010 | 15 mm18 May 2011 | 26 mm1995 · driest 0 mm in 2012 | 32 |
| June | 46.7°C13 Jun 2000 | 1.7°C7 Jun 1988 | 10 mm10 Jun 1990 | 20 mm1990 · driest 0 mm in 1986 | 32 |
| July | 45.0°C17 Jul 1998 | 3.9°C14 Jul 1992 | 35 mm28 Jul 1984 | 63 mm1984 · driest 0 mm in 2000 | 32 |
| August | 45.0°C5 Aug 1994 | 5.0°C30 Aug 2010 | 63 mm30 Aug 2012 | 84 mm1983 · driest 0 mm in 1997 | 32 |
| September | 38.9°C8 Sep 1990 | 1.7°C15 Sep 1993 | 19 mm27 Sep 1997 | 51 mm1997 · driest 0 mm in 1984 | 32 |
| October | 36.7°C5 Oct 1993 | -2.2°C29 Oct 2009 | 78 mm20 Oct 2004 | 162 mm2004 · driest 0 mm in 2006 | 33 |
| November | 30.0°C3 Nov 1997 | -3.3°C25 Nov 2010 | 44 mm12 Nov 1985 | 105 mm1985 · driest 0 mm in 1989 | 32 |
| December | 26.7°C5 Dec 1989 | -5.0°C18 Dec 2006 | 47 mm17 Dec 2008 | 92 mm2008 · driest 0 mm in 2005 | 29 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 4 | 2 |
| February | <1 | 0 | 5 | 2 |
| March | 2 | 0 | 4 | 2 |
| April | 5 | 1 | 2 | <1 |
| May | 12 | 4 | 0 | <1 |
| June | 20 | 13 | 0 | 0 |
| July | 26 | 22 | 0 | <1 |
| August | 24 | 20 | 0 | <1 |
| September | 22 | 16 | 0 | <1 |
| October | 13 | 4 | <1 | <1 |
| November | 3 | <1 | 2 | <1 |
| December | <1 | 0 | 4 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 11% | 19% | 7% | 21% | 10.9–17.0°C |
| February | 17% | 19% | 8% | 22% | 11.0–16.6°C |
| March | 31% | 17% | 7% | 17% | 13.2–20.5°C |
| April | 50% | 10% | 2% | 6% | 16.8–22.3°C |
| May | 79% | 3% | <1% | <1% | 20.3–28.9°C |
| June | 93% | 1% | 0% | <1% | 25.6–31.6°C |
| July | 95% | 5% | 1% | 2% | 30.2–34.5°C |
| August | 92% | 7% | 3% | 6% | 30.5–34.4°C |
| September | 92% | 5% | <1% | 1% | 27.3–31.5°C |
| October | 71% | 5% | 1% | 2% | 19.2–26.8°C |
| November | 36% | 10% | 3% | 8% | 13.5–20.1°C |
| December | 13% | 14% | 5% | 9% | 11.0–16.3°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