January
January · December · February
Mexico · 1991–2020
January leads for comfortable weather in Valle de Santiago: typically 23.9°C by day, 5.1°C at night, with 15 mm of rain. Based on measured 1991–2020 NOAA station history.
January · December · February
May · April · June
January · December · February
The weakest month is July, scoring 63 against January’s 82 — 144 mm of rain falls, and days average 27.6°C, 4° 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 | 23.9°C | 5.1°C | 15 mm | 1.8 | 11 h 01 | 82 | Good coverage |
| February | 25.1°C | 6.5°C | 15 mm | 1.3 | 11 h 27 | 81 | Good coverage |
| March | 27.8°C | 8.6°C | 5 mm | 1 | 11 h 58 | 76 | Good coverage |
| April | 30.3°C | 10.8°C | 5 mm | 1.1 | 12 h 35 | 72 | Good coverage |
| May | 31.4°C | 13.4°C | 29 mm | 3.5 | 13 h 05 | 72 | Good coverage |
| June | 29.8°C | 14.7°C | 98 mm | 8.8 | 13 h 22 | 66 | Good coverage |
| July | 27.6°C | 14.1°C | 144 mm | 12.3 | 13 h 15 | 63 | Good coverage |
| August | 27.4°C | 13.7°C | 142 mm | 12.1 | 12 h 49 | 63 | Good coverage |
| September | 26.8°C | 13.2°C | 119 mm | 9.7 | 12 h 14 | 70 | Good coverage |
| October | 26.7°C | 10.5°C | 46 mm | 3.9 | 11 h 39 | 81 | Good coverage |
| November | 25.7°C | 7.5°C | 10 mm | 1.3 | 11 h 08 | 81 | Good coverage |
| December | 24.2°C | 5.3°C | 3 mm | 0.6 | 10 h 54 | 82 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 32.8°C12 Jan 1930 | -6.1°C1 Jan 1964 | 34 mm24 Jan 1980 | 111 mm1992 · driest 0 mm in 1962 | 75 |
| February | 35.0°C26 Feb 1930 | -5.0°C14 Feb 1960 | 74 mm3 Feb 2010 | 138 mm2010 · driest 0 mm in 1958 | 72 |
| March | 43.3°C31 Mar 1946 | -2.2°C6 Mar 1966 | 89 mm21 Mar 1925 | 118 mm1925 · driest 0 mm in 2003 | 77 |
| April | 42.8°C1 Apr 1946 | -0.6°C5 Apr 1960 | 28 mm15 Apr 1959 | 70 mm1959 · driest 0 mm in 1945 | 78 |
| May | 45.0°C14 May 1930 | 5.0°C4 May 1966 | 51 mm24 May 1982 | 114 mm1967 · driest 0 mm in 1960 | 77 |
| June | 40.0°C10 Jun 1969 | 5.6°C15 Jun 1979 | 64 mm18 Jun 2012 | 262 mm1948 · driest 0 mm in 1994 | 76 |
| July | 40.0°C3 Jul 1930 | 7.8°C1 Jul 1970 | 107 mm19 Jul 1970 | 350 mm1976 · driest 0 mm in 1994 | 74 |
| August | 40.0°C16 Aug 1930 | 7.2°C24 Aug 1961 | 82 mm9 Aug 1984 | 369 mm1973 · driest 19 mm in 1968 | 73 |
| September | 40.6°C25 Sep 1930 | 3.9°C27 Sep 1979 | 82 mm19 Sep 1957 | 291 mm1958 · driest 0 mm in 1930 | 73 |
| October | 33.9°C17 Oct 1928 | -1.7°C17 Oct 1961 | 80 mm30 Oct 1995 | 172 mm1958 · driest 0 mm in 1979 | 74 |
| November | 33.3°C21 Nov 1961 | -6.1°C18 Nov 1970 | 55 mm5 Nov 1952 | 124 mm1930 · driest 0 mm in 1998 | 74 |
| December | 33.9°C11 Dec 1961 | -7.2°C26 Dec 1963 | 25 mm10 Dec 1953 | 133 mm1925 · driest 0 mm in 1966 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 15 | 0 | 1 | <1 |
| February | 18 | <1 | <1 | <1 |
| March | 28 | 7 | 0 | 0 |
| April | 29 | 20 | 0 | <1 |
| May | 30 | 25 | 0 | 1 |
| June | 29 | 16 | 0 | 3 |
| July | 29 | 5 | 0 | 6 |
| August | 29 | 5 | 0 | 5 |
| September | 26 | 2 | 0 | 4 |
| October | 26 | 5 | <1 | 1 |
| November | 22 | 2 | <1 | <1 |
| December | 16 | <1 | 2 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 90% | 5% | 2% | 4% | 22.2–26.0°C |
| February | 95% | 4% | 1% | 1% | 24.0–28.3°C |
| March | 97% | 3% | <1% | 1% | 27.0–30.6°C |
| April | 95% | 5% | <1% | 3% | 28.9–33.7°C |
| May | 88% | 12% | 4% | 12% | 30.1–34.5°C |
| June | 68% | 32% | 13% | 47% | 28.0–33.2°C |
| July | 58% | 42% | 18% | 58% | 26.1–30.0°C |
| August | 61% | 39% | 17% | 53% | 26.1–29.7°C |
| September | 68% | 31% | 14% | 36% | 25.4–28.9°C |
| October | 86% | 13% | 5% | 11% | 24.7–28.9°C |
| November | 93% | 6% | 2% | 3% | 24.2–28.1°C |
| December | 92% | 4% | <1% | 2% | 22.3–26.4°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