December
December · January · November
Mexico · 1991–2020
December leads for comfortable weather in Melchor Ocampo: typically 27.6°C by day, 12.5°C at night, with 37 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · November
February · November · January
December · January · February
The weakest month is September, scoring 31 against December’s 83 — days average 32.6°C, 9° above the 24°C the score treats as ideal, and 231 mm of rain falls.
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 | 28.1°C | 12.4°C | 21 mm | 2.4 | 11 h 05 | 82 | Good coverage |
| February | 30.2°C | 12.9°C | 33 mm | 2.3 | 11 h 29 | 76 | Good coverage |
| March | 32.9°C | 13.5°C | 22 mm | 1.7 | 11 h 59 | 68 | Good coverage |
| April | 35.4°C | 15.8°C | 25 mm | 2 | 12 h 34 | 61 | Good coverage |
| May | 36°C | 16.8°C | 109 mm | 5 | 13 h 02 | 45 | Good coverage |
| June | 34.2°C | 17.1°C | 172 mm | 10.9 | 13 h 17 | 36 | Good coverage |
| July | 33.7°C | 16.8°C | 131 mm | 10.1 | 13 h 12 | 45 | Good coverage |
| August | 33.7°C | 16.6°C | 197 mm | 12.9 | 12 h 47 | 33 | Good coverage |
| September | 32.6°C | 16.8°C | 231 mm | 14 | 12 h 14 | 31 | Good coverage |
| October | 30.5°C | 16.1°C | 129 mm | 9.6 | 11 h 40 | 57 | Good coverage |
| November | 28.9°C | 13.8°C | 61 mm | 4.2 | 11 h 12 | 77 | Good coverage |
| December | 27.6°C | 12.5°C | 37 mm | 2.6 | 10 h 58 | 83 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 40.6°C18 Jan 1987 | 1.7°C21 Jan 2009 | 108 mm2 Jan 1988 | 138 mm1988 · driest 0 mm in 1995 | 30 |
| February | 42.8°C28 Feb 1987 | 2.8°C5 Feb 2009 | 75 mm10 Feb 2002 | 112 mm2008 · driest 0 mm in 2005 | 29 |
| March | 45.6°C26 Mar 1987 | 2.8°C3 Mar 2009 | 56 mm7 Mar 1993 | 107 mm1984 · driest 0 mm in 2004 | 30 |
| April | 45.0°C14 Apr 1987 | 3.9°C2 Apr 1987 | 82 mm1 Apr 2005 | 138 mm1989 · driest 0 mm in 1982 | 30 |
| May | 45.6°C3 May 1987 | 7.8°C8 May 1992 | 119 mm30 May 1998 | 261 mm1984 · driest 0 mm in 1983 | 30 |
| June | 41.7°C3 Jun 1986 | 10.6°C15 Jun 2010 | 193 mm17 Jun 1993 | 415 mm1993 · driest 36 mm in 1998 | 29 |
| July | 43.9°C5 Jul 1985 | 11.7°C16 Jul 1996 | 134 mm16 Jul 2010 | 359 mm2010 · driest 19 mm in 1993 | 29 |
| August | 43.9°C16 Aug 2008 | 10.6°C15 Aug 1996 | 109 mm26 Aug 2003 | 366 mm1989 · driest 43 mm in 2008 | 30 |
| September | 41.7°C15 Sep 1998 | 11.7°C2 Sep 1996 | 222 mm14 Sep 1988 | 697 mm2002 · driest 44 mm in 2001 | 30 |
| October | 41.7°C9 Oct 1986 | 5.6°C30 Oct 2008 | 122 mm28 Oct 2007 | 326 mm1995 · driest 17 mm in 1984 | 30 |
| November | 40.6°C27 Nov 1983 | 3.9°C29 Nov 2011 | 86 mm2 Nov 2006 | 204 mm2003 · driest 0 mm in 2002 | 30 |
| December | 40.6°C13 Dec 1983 | 1.7°C14 Dec 2010 | 103 mm16 Dec 2001 | 161 mm2001 · driest 0 mm in 2010 | 31 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 28 | 12 | <1 |
| February | 27 | 19 | <1 |
| March | 30 | 27 | <1 |
| April | 30 | 29 | <1 |
| May | 31 | 30 | 3 |
| June | 30 | 29 | 5 |
| July | 31 | 31 | 4 |
| August | 30 | 30 | 6 |
| September | 30 | 28 | 7 |
| October | 31 | 22 | 4 |
| November | 29 | 13 | 2 |
| December | 27 | 9 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 91% | 8% | 3% | 3% | 27.0–33.1°C |
| February | 93% | 8% | 3% | 5% | 29.0–35.9°C |
| March | 93% | 7% | 4% | 2% | 31.8–37.2°C |
| April | 93% | 7% | 2% | 2% | 34.1–39.3°C |
| May | 84% | 16% | 10% | 19% | 33.4–38.5°C |
| June | 64% | 36% | 16% | 46% | 33.0–38.6°C |
| July | 66% | 34% | 14% | 48% | 32.4–38.5°C |
| August | 58% | 42% | 20% | 61% | 32.0–38.8°C |
| September | 54% | 46% | 22% | 67% | 31.1–38.9°C |
| October | 71% | 29% | 11% | 33% | 28.9–37.4°C |
| November | 86% | 14% | 5% | 10% | 27.8–35.7°C |
| December | 91% | 9% | 3% | 4% | 26.0–35.2°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