January
January · November · December
Mexico · 1991–2020
January leads for comfortable weather in Montebello Altamira: typically 32.6°C by day, 15.5°C at night, with 3 mm of rain. Based on measured 1991–2020 NOAA station history.
January · November · December
November · December · January
January · November · December
The weakest month is August, scoring 5 against January’s 71 — 383 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 | 32.6°C | 15.5°C | 3 mm | 0.4 | 11 h 17 | 71 | Good coverage |
| February | 33.7°C | 15.8°C | 3 mm | 0.2 | 11 h 36 | 67 | Good coverage |
| March | 35.1°C | 16.8°C | 8 mm | 0.6 | 12 h 00 | 60 | Good coverage |
| April | 36°C | 17.2°C | 33 mm | 2 | 12 h 28 | 57 | Good coverage |
| May | 34.8°C | 17.5°C | 174 mm | 7.7 | 12 h 51 | 36 | Good coverage |
| June | 32.6°C | 17.9°C | 317 mm | 15 | 13 h 03 | 16 | Good coverage |
| July | 32.6°C | 17.8°C | 292 mm | 15.2 | 12 h 59 | 20 | Good coverage |
| August | 32.7°C | 17.8°C | 383 mm | 16.8 | 12 h 39 | 5 | Good coverage |
| September | 32.1°C | 17.5°C | 441 mm | 18.4 | 12 h 12 | 5 | Good coverage |
| October | 32°C | 17.1°C | 184 mm | 9.4 | 11 h 45 | 43 | Good coverage |
| November | 31.8°C | 16.4°C | 41 mm | 2.7 | 11 h 23 | 71 | Good coverage |
| December | 32°C | 16.4°C | 13 mm | 0.7 | 11 h 12 | 71 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 41.7°C21 Jan 2004 | 6.1°C11 Jan 1981 | 20 mm6 Jan 2006 | 22 mm1993 · driest 0 mm in 1992 | 29 |
| February | 42.8°C2 Feb 2004 | 5.6°C25 Feb 1989 | 64 mm21 Feb 1982 | 69 mm1982 · driest 0 mm in 1989 | 29 |
| March | 43.3°C22 Mar 2004 | 6.7°C7 Mar 1989 | 61 mm30 Mar 1995 | 96 mm1995 · driest 0 mm in 2007 | 26 |
| April | 47.2°C7 Apr 2004 | 7.8°C5 Apr 2005 | 94 mm30 Apr 1985 | 150 mm1985 · driest 0 mm in 1998 | 27 |
| May | 45.0°C21 May 2003 | 5.0°C23 May 2001 | 150 mm17 May 2008 | 446 mm2004 · driest 52 mm in 2002 | 27 |
| June | 41.1°C22 Jun 2003 | 7.8°C26 Jun 2000 | 111 mm10 Jun 1990 | 686 mm1995 · driest 0 mm in 1988 | 29 |
| July | 40.0°C19 Jul 1991 | 9.4°C21 Jul 2006 | 102 mm9 Jul 1990 | 537 mm2003 · driest 67 mm in 2009 | 29 |
| August | 38.9°C20 Aug 2003 | 7.2°C4 Aug 2001 | 160 mm23 Aug 1996 | 807 mm1996 · driest 104 mm in 2006 | 28 |
| September | 39.4°C10 Sep 2001 | 7.8°C12 Sep 2006 | 180 mm9 Sep 1996 | 690 mm1996 · driest 120 mm in 2002 | 27 |
| October | 46.7°C31 Oct 2003 | 6.7°C8 Oct 2001 | 141 mm19 Oct 1999 | 541 mm1999 · driest 10 mm in 2001 | 27 |
| November | 41.7°C27 Nov 2003 | 6.7°C2 Nov 2001 | 50 mm12 Nov 2002 | 194 mm1998 · driest 0 mm in 2000 | 27 |
| December | 40.0°C29 Dec 2003 | 3.9°C19 Dec 2003 | 46 mm10 Dec 2004 | 94 mm2009 · driest 0 mm in 2000 | 29 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 30 | 27 | <1 |
| February | 28 | 25 | <1 |
| March | 30 | 30 | <1 |
| April | 29 | 29 | <1 |
| May | 30 | 29 | 5 |
| June | 29 | 27 | 9 |
| July | 30 | 28 | 9 |
| August | 30 | 27 | 11 |
| September | 29 | 26 | 13 |
| October | 30 | 26 | 5 |
| November | 29 | 24 | 1 |
| December | 30 | 26 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 99% | <1% | <1% | 0% | 28.9–35.4°C |
| February | 99% | 1% | <1% | <1% | 29.9–36.6°C |
| March | 98% | 2% | <1% | <1% | 31.6–37.7°C |
| April | 94% | 7% | 3% | 5% | 32.9–38.0°C |
| May | 74% | 26% | 16% | 35% | 31.9–36.4°C |
| June | 48% | 52% | 33% | 72% | 30.7–34.4°C |
| July | 46% | 53% | 33% | 71% | 30.6–34.1°C |
| August | 42% | 57% | 39% | 76% | 30.4–34.6°C |
| September | 34% | 66% | 46% | 83% | 30.2–33.9°C |
| October | 66% | 33% | 17% | 40% | 29.1–33.9°C |
| November | 91% | 9% | 4% | 7% | 28.8–33.8°C |
| December | 98% | 3% | <1% | 1% | 28.8–33.7°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