May
May · October · September
78climate match
United States · 1991–2020
Best time to visit
Etna.
May leads for comfortable weather in Etna: typically 26.1°C by day, 6.6°C at night, with 18 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortMay
Typical high26.1°C
Typical low6.6°C
Rain in May18 mm
August
August · June · July
65climate match
April
April · October · May
84climate match
The weakest month is December, scoring 9 against May’s 78 — days reach only 8.6°C, 15° below the 24°C the score treats as ideal, and nights drop to -7°C.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
129.2° / -6.4°
Feb
2511.9° / -4.3°
Mar
4616.7° / -1.1°
Apr
6520.6° / 2°
May
7826.1° / 6.6°
Jun
6631.8° / 10.7°
Jul
6235.5° / 14.9°
Aug
6434.2° / 14°
Sep
6930.1° / 8.8°
Oct
7322.9° / 2.1°
Nov
3715.2° / -3.7°
Dec
98.6° / -7°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 9.2°C | -6.4°C | 22 mm | 3.6 | 9 h 50 | 12 | Strong coverage |
| February | 11.9°C | -4.3°C | 27 mm | 3.8 | 10 h 45 | 25 | Strong coverage |
| March | 16.7°C | -1.1°C | 29 mm | 4.2 | 11 h 50 | 46 | Strong coverage |
| April | 20.6°C | 2°C | 15 mm | 3.2 | 13 h 07 | 65 | Strong coverage |
| May | 26.1°C | 6.6°C | 18 mm | 3 | 14 h 10 | 78 | Strong coverage |
| June | 31.8°C | 10.7°C | 10 mm | 1.3 | 14 h 44 | 66 | Strong coverage |
| July | 35.5°C | 14.9°C | 21 mm | 2.7 | 14 h 31 | 62 | Strong coverage |
| August | 34.2°C | 14°C | 23 mm | 2.9 | 13 h 36 | 64 | Strong coverage |
| September | 30.1°C | 8.8°C | 14 mm | 2.3 | 12 h 23 | 69 | Strong coverage |
| October | 22.9°C | 2.1°C | 20 mm | 2.7 | 11 h 09 | 73 | Strong coverage |
| November | 15.2°C | -3.7°C | 15 mm | 2.1 | 10 h 06 | 37 | Strong coverage |
| December | 8.6°C | -7°C | 23 mm | 3.5 | 9 h 35 | 9 | Strong coverage |
What has changed
Etna runs +0.8°C
on the 1961–1990 baseline.
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
Jan
+1.0
Feb
+0.2
Mar
+2.3
Apr
+1.7
May
+0.1
Jun
+1.6
Jul
+0.7
Aug
+0.7
Sep
+1.2
Oct
0.0
Nov
+0.9
Dec
-0.5
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.7°C15 Jan 1943 | -35.0°C9 Jan 1937 | 36 mm6 Jan 1992 | 83 mm1914 · driest 0 mm in 1976 | 94 |
| February | 27.2°C26 Feb 1986 | -28.3°C6 Feb 1989 | 57 mm24 Feb 1998 | 101 mm1998 · driest 0 mm in 1974 | 93 |
| March | 32.2°C30 Mar 1971 | -16.7°C9 Mar 1958 | 34 mm18 Mar 1982 | 98 mm1978 · driest 0 mm in 1971 | 93 |
| April | 34.4°C24 Apr 2012 | -9.4°C4 Apr 1945 | 29 mm11 Apr 1941 | 94 mm1941 · driest 0 mm in 1979 | 95 |
| May | 39.4°C25 May 2001 | -5.6°C3 May 1913 | 38 mm11 May 1947 | 97 mm2019 · driest 0 mm in 2010 | 96 |
| June | 42.8°C22 Jun 1954 | 0.6°C1 Jun 1971 | 29 mm25 Jun 2000 | 55 mm1993 · driest 0 mm in 2017 | 96 |
| July | 43.3°C13 Jul 1915 | 4.4°C1 Jul 1982 | 43 mm19 Jul 2015 | 136 mm1984 · driest 0 mm in 1963 | 96 |
| August | 42.2°C12 Aug 1940 | 1.1°C15 Aug 1910 | 47 mm22 Aug 2012 | 106 mm1945 · driest 0 mm in 1944 | 95 |
| September | 41.1°C1 Sep 1950 | -3.9°C26 Sep 1948 | 40 mm19 Sep 1966 | 80 mm1939 · driest 0 mm in 2020 | 96 |
| October | 35.0°C2 Oct 2001 | -12.8°C31 Oct 2019 | 54 mm28 Oct 1946 | 130 mm2004 · driest 0 mm in 1999 | 93 |
| November | 27.8°C1 Nov 1999 | -17.8°C20 Nov 1956 | 46 mm6 Nov 1960 | 86 mm1987 · driest 0 mm in 1948 | 93 |
| December | 21.7°C4 Dec 1904 | -27.8°C23 Dec 1990 | 54 mm5 Dec 1947 | 96 mm1947 · driest 0 mm in 1997 | 96 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | <1 | 1 |
| February | 0 | 0 | 24 | <1 | 1 |
| March | 2 | 0 | 20 | <1 | <1 |
| April | 7 | <1 | 9 | <1 | <1 |
| May | 18 | 7 | <1 | <1 | 0 |
| June | 27 | 20 | 0 | <1 | 0 |
| July | 29 | 28 | 0 | <1 | 0 |
| August | 30 | 28 | 0 | <1 | 0 |
| September | 26 | 17 | <1 | <1 | 0 |
| October | 12 | 3 | 9 | <1 | 0 |
| November | <1 | 0 | 25 | <1 | <1 |
| December | 0 | 0 | 27 | <1 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 12% | 2% | 8% | 4.2–12.2°C |
| February | 6% | 14% | 3% | 13% | 8.3–15.5°C |
| March | 28% | 14% | 2% | 11% | 13.0–19.4°C |
| April | 59% | 10% | 1% | 7% | 18.0–23.6°C |
| May | 83% | 9% | 1% | 5% | 22.5–28.8°C |
| June | 95% | 5% | <1% | 2% | 28.9–34.2°C |
| July | 90% | 10% | 2% | 8% | 33.4–37.0°C |
| August | 90% | 10% | 2% | 6% | 32.7–36.0°C |
| September | 90% | 7% | 2% | 5% | 27.6–31.9°C |
| October | 72% | 8% | 2% | 7% | 19.7–26.0°C |
| November | 21% | 7% | 2% | 4% | 11.6–18.1°C |
| December | <1% | 10% | 1% | 7% | 5.8–12.3°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
Nearby, measured,
and named.
- Place identity
- GeoNames 5503799
- NOAA station
- USC00261358 · CALIENTE
- Station distance
- 7.5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 27 usable years
- Daylight
- Calculated from latitude 37.56°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.