December
December · February · January
Mexico · 1991–2020
December leads for comfortable weather in Vallehermoso: typically 30.9°C by day, 17.7°C at night, with 39 mm of rain. Based on measured 1991–2020 NOAA station history.
December · February · January
December · February · March
December · February · March
The weakest month is August, scoring 26 against December’s 71 — days average 34.5°C, 11° above 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 | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 31°C | 17.6°C | 72 mm | 7.2 | 11 h 05 | 63 | Good coverage |
| February | 32.3°C | 18°C | 32 mm | 3.3 | 11 h 29 | 67 | Good coverage |
| March | 33.6°C | 18.6°C | 21 mm | 2.4 | 11 h 59 | 62 | Good coverage |
| April | 34.7°C | 20°C | 39 mm | 2.4 | 12 h 33 | 55 | Good coverage |
| May | 34.8°C | 21.1°C | 100 mm | 6.8 | 13 h 02 | 41 | Good coverage |
| June | 34.5°C | 21.6°C | 131 mm | 9.7 | 13 h 17 | 34 | Good coverage |
| July | 34.3°C | 21.4°C | 143 mm | 10.5 | 13 h 11 | 32 | Good coverage |
| August | 34.5°C | 21.3°C | 176 mm | 12.5 | 12 h 47 | 26 | Good coverage |
| September | 34.1°C | 21.1°C | 183 mm | 13 | 12 h 14 | 26 | Good coverage |
| October | 33.1°C | 20.5°C | 136 mm | 11.3 | 11 h 40 | 39 | Good coverage |
| November | 31.7°C | 19°C | 74 mm | 7.6 | 11 h 12 | 58 | Good coverage |
| December | 30.9°C | 17.7°C | 39 mm | 4 | 10 h 59 | 71 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 40.0°C23 Jan 1973 | 5.0°C16 Jan 1978 | 53 mm10 Jan 1994 | 182 mm1993 · driest 0 mm in 1987 | 33 |
| February | 42.2°C10 Feb 1973 | 7.8°C14 Feb 1988 | 63 mm8 Feb 1985 | 115 mm1974 · driest 0 mm in 1995 | 30 |
| March | 43.3°C13 Mar 1973 | 7.2°C13 Mar 1996 | 64 mm4 Mar 2001 | 181 mm1980 · driest 0 mm in 1982 | 30 |
| April | 43.3°C14 Apr 1972 | 10.0°C13 Apr 1987 | 91 mm22 Apr 1997 | 179 mm1993 · driest 0 mm in 1974 | 31 |
| May | 46.1°C7 May 1974 | 10.0°C31 May 1987 | 118 mm27 May 2001 | 273 mm2001 · driest 0 mm in 2009 | 31 |
| June | 41.7°C23 Jun 1971 | 10.0°C3 Jun 1987 | 153 mm16 Jun 1993 | 503 mm1993 · driest 10 mm in 1988 | 32 |
| July | 43.3°C28 Jul 1974 | 10.0°C27 Jul 1986 | 75 mm10 Jul 1983 | 382 mm1983 · driest 12 mm in 1986 | 32 |
| August | 40.0°C8 Aug 1980 | 10.0°C20 Aug 1988 | 121 mm20 Aug 1996 | 361 mm2000 · driest 25 mm in 1988 | 32 |
| September | 43.3°C18 Sep 1973 | 10.0°C9 Sep 1987 | 99 mm17 Sep 1997 | 340 mm1995 · driest 10 mm in 1987 | 34 |
| October | 39.4°C3 Oct 1974 | 8.3°C31 Oct 1988 | 134 mm10 Oct 1995 | 361 mm1995 · driest 0 mm in 1987 | 35 |
| November | 38.9°C25 Nov 1988 | 8.3°C25 Nov 1988 | 75 mm13 Nov 1990 | 212 mm1990 · driest 0 mm in 1988 | 35 |
| December | 39.4°C28 Dec 1974 | 8.3°C31 Dec 1997 | 82 mm11 Dec 1980 | 172 mm1973 · driest 0 mm in 1987 | 32 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 30 | 22 | 3 |
| February | 28 | 25 | 1 |
| March | 30 | 29 | <1 |
| April | 30 | 30 | 1 |
| May | 31 | 30 | 3 |
| June | 30 | 29 | 5 |
| July | 31 | 31 | 6 |
| August | 31 | 31 | 6 |
| September | 30 | 30 | 7 |
| October | 31 | 29 | 5 |
| November | 30 | 24 | 3 |
| December | 31 | 22 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 83% | 17% | 7% | 18% | 28.3–33.9°C |
| February | 88% | 12% | 5% | 10% | 29.8–34.7°C |
| March | 92% | 9% | 3% | 5% | 31.1–35.3°C |
| April | 93% | 7% | 4% | 3% | 31.9–35.5°C |
| May | 81% | 19% | 9% | 23% | 32.6–36.2°C |
| June | 72% | 28% | 14% | 36% | 32.1–35.3°C |
| July | 69% | 31% | 17% | 39% | 32.4–35.4°C |
| August | 65% | 35% | 18% | 49% | 31.8–35.6°C |
| September | 63% | 37% | 21% | 50% | 31.6–34.8°C |
| October | 69% | 31% | 15% | 37% | 30.6–34.2°C |
| November | 80% | 21% | 8% | 20% | 29.7–33.4°C |
| December | 85% | 14% | 6% | 12% | 28.6–33.7°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