December
December · January · February
Mexico · 1991–2020
December leads for comfortable weather in Ponciano Arriaga: typically 28.7°C by day, 15.3°C at night, with 30 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · February
January · February · December
December · January · February
The weakest month is July, scoring 23 against December’s 84 — days average 36.6°C, 13° 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 | 29°C | 15.7°C | 29 mm | 2.5 | 10 h 54 | 82 | Good coverage |
| February | 30.8°C | 16.7°C | 17 mm | 2.1 | 11 h 23 | 74 | Good coverage |
| March | 33.6°C | 18.1°C | 10 mm | 1.2 | 11 h 58 | 63 | Good coverage |
| April | 35.8°C | 20.2°C | 29 mm | 2.5 | 12 h 38 | 52 | Good coverage |
| May | 36.2°C | 21.3°C | 43 mm | 3.3 | 13 h 11 | 47 | Good coverage |
| June | 36.5°C | 22.2°C | 132 mm | 7.4 | 13 h 29 | 28 | Good coverage |
| July | 36.6°C | 22.3°C | 169 mm | 7.3 | 13 h 22 | 23 | Good coverage |
| August | 35.9°C | 21.5°C | 153 mm | 7.1 | 12 h 54 | 29 | Good coverage |
| September | 35.4°C | 20.9°C | 122 mm | 7.2 | 12 h 15 | 36 | Good coverage |
| October | 33.7°C | 20°C | 62 mm | 4.1 | 11 h 36 | 54 | Good coverage |
| November | 31.9°C | 17.4°C | 36 mm | 2.8 | 11 h 03 | 69 | Good coverage |
| December | 28.7°C | 15.3°C | 30 mm | 2.7 | 10 h 47 | 84 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 45.0°C19 Jan 1999 | 0.0°C14 Jan 1975 | 43 mm30 Jan 1975 | 148 mm1992 · driest 0 mm in 1986 | 44 |
| February | 46.7°C26 Feb 2004 | 5.0°C24 Feb 1975 | 27 mm25 Feb 1982 | 65 mm1970 · driest 0 mm in 1997 | 43 |
| March | 46.7°C31 Mar 2009 | 5.6°C23 Mar 1968 | 37 mm23 Mar 1967 | 51 mm1972 · driest 0 mm in 1997 | 44 |
| April | 48.9°C28 Apr 2003 | 10.0°C8 Apr 1997 | 69 mm8 Apr 1968 | 152 mm1997 · driest 0 mm in 1963 | 45 |
| May | 48.9°C7 May 1998 | 10.6°C17 May 1997 | 85 mm2 May 1985 | 164 mm1981 · driest 0 mm in 1998 | 44 |
| June | 48.9°C21 Jun 1997 | 11.7°C1 Jun 2004 | 160 mm24 Jun 1973 | 374 mm1973 · driest 0 mm in 1995 | 44 |
| July | 47.8°C12 Jul 1997 | 15.0°C7 Jul 1984 | 178 mm3 Jul 1974 | 768 mm2008 · driest 0 mm in 2009 | 45 |
| August | 48.9°C29 Aug 2005 | 11.7°C30 Aug 2001 | 104 mm21 Aug 1969 | 716 mm2008 · driest 0 mm in 2004 | 45 |
| September | 46.7°C20 Sep 1998 | 10.0°C26 Sep 2001 | 126 mm21 Sep 1974 | 458 mm2010 · driest 0 mm in 2005 | 42 |
| October | 47.8°C8 Oct 2003 | 8.9°C21 Oct 1964 | 80 mm11 Oct 1973 | 207 mm1992 · driest 0 mm in 2010 | 43 |
| November | 45.0°C25 Nov 1998 | 1.7°C28 Nov 1992 | 60 mm4 Nov 2002 | 196 mm2002 · driest 0 mm in 1975 | 41 |
| December | 46.7°C18 Dec 2003 | 0.0°C24 Dec 1963 | 86 mm16 Dec 2009 | 179 mm2009 · driest 0 mm in 1987 | 39 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 25 | 14 | 1 |
| February | 24 | 17 | <1 |
| March | 28 | 23 | <1 |
| April | 29 | 27 | 1 |
| May | 30 | 29 | 1 |
| June | 29 | 27 | 4 |
| July | 30 | 26 | 5 |
| August | 30 | 28 | 5 |
| September | 29 | 26 | 4 |
| October | 30 | 27 | 2 |
| November | 28 | 22 | 1 |
| December | 25 | 14 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 83% | 10% | 3% | 7% | 22.0–32.5°C |
| February | 88% | 8% | 2% | 4% | 24.6–33.5°C |
| March | 94% | 5% | <1% | 3% | 28.0–37.3°C |
| April | 93% | 7% | 3% | 4% | 30.9–38.4°C |
| May | 89% | 11% | 5% | 10% | 33.2–38.1°C |
| June | 75% | 25% | 14% | 32% | 31.9–38.2°C |
| July | 74% | 26% | 14% | 28% | 30.4–39.5°C |
| August | 76% | 24% | 15% | 28% | 31.6–38.0°C |
| September | 72% | 28% | 16% | 31% | 30.2–37.3°C |
| October | 86% | 14% | 6% | 13% | 29.0–34.9°C |
| November | 89% | 9% | 3% | 4% | 26.2–34.8°C |
| December | 86% | 10% | 3% | 7% | 23.4–31.1°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