Alcova weather by month
What a typical year looks like in Alcova, Wyoming: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Pathfinder Dam, 14 km from Alcova; records cover 1905–2026.
The year at a glance
- Precipitation a year
- 11.2 in284 mm
- Snow a year
- Rare
- Last spring freeze
- May 11
- First fall freeze
- Oct 2
- Heating degree days
- 7,271
- Cooling degree days
- 491
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −7°−22° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Alcova in January
Highs average 33°1° and lows 16°−9°, with 0.58 in15 mm of precipitation in a typical January.
- Record high
- 59°15° (1971)
- Record low
- −39° (1930)
- Heating degree days
- 1251
- Cooling degree days
- 0
Alcova in February
Highs average 36°2° and lows 17°−9°, with 0.48 in12 mm of precipitation in a typical February.
- Record high
- 67°19° (1940)
- Record low
- −35°−37° (1933)
- Heating degree days
- 1089
- Cooling degree days
- 0
Alcova in March
Highs average 46°8° and lows 26°−3°, with 0.83 in21 mm of precipitation in a typical March.
- Record high
- 72°22° (1940)
- Record low
- −33°−36° (1917)
- Heating degree days
- 899
- Cooling degree days
- 0
Alcova in April
Highs average 54°12° and lows 32°0°, with 1.2 in31 mm of precipitation in a typical April.
- Record high
- 82°28° (1910)
- Record low
- −5°−21° (1936)
- Heating degree days
- 668
- Cooling degree days
- 0
Alcova in May
Highs average 64°18° and lows 41°5°, with 1.9 in49 mm of precipitation in a typical May.
- Record high
- 89°32° (1934)
- Record low
- 15°−9° (1953)
- Heating degree days
- 398
- Cooling degree days
- 5
Alcova in June
Highs average 77°25° and lows 50°10°, with 1.4 in35 mm of precipitation in a typical June.
- Record high
- 98°37° (1959)
- Record low
- 22°−6° (1906)
- Heating degree days
- 108
- Cooling degree days
- 56
Alcova in July
Highs average 86°30° and lows 58°14°, with 0.74 in19 mm of precipitation in a typical July.
- Record high
- 100°38° (1925)
- Record low
- 33°1° (1985)
- Heating degree days
- 8
- Cooling degree days
- 216
Alcova in August
Highs average 83°28° and lows 57°14°, with 1.1 in27 mm of precipitation in a typical August.
- Record high
- 99°37° (1906)
- Record low
- 27°−3° (1910)
- Heating degree days
- 24
- Cooling degree days
- 176
Alcova in September
Highs average 73°23° and lows 48°9°, with 0.83 in21 mm of precipitation in a typical September.
- Record high
- 96°36° (2022)
- Record low
- 13°−11° (1926)
- Heating degree days
- 179
- Cooling degree days
- 36
Alcova in OctoberThis month
Highs average 58°15° and lows 36°2°, with 1.1 in29 mm of precipitation in a typical October.
- Record high
- 88°31° (1943)
- Record low
- −7°−22° (2019)
- Heating degree days
- 553
- Cooling degree days
- 2
Alcova in November
Highs average 45°7° and lows 27°−3°, with 0.49 in12 mm of precipitation in a typical November.
- Record high
- 75°24° (1952)
- Record low
- −20°−29° (1911)
- Heating degree days
- 870
- Cooling degree days
- 0
Alcova in December
Highs average 33°1° and lows 18°−8°, with 0.53 in13 mm of precipitation in a typical December.
- Record high
- 64°18° (1940)
- Record low
- −34°−37° (1990)
- Heating degree days
- 1224
- Cooling degree days
- 0