Ririe weather by month
What a typical year looks like in Ririe, Idaho: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at IDAHO FALLS - KIFI, 24 km from Ririe; records cover 1952–2026.
The year at a glance
- Precipitation a year
- 13.5 in343 mm
- Snow a year
- Rare
- Last spring freeze
- May 12
- First fall freeze
- Sep 23
- Heating degree days
- 7,144
- Cooling degree days
- 444
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −5°−21° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Ririe in January
Highs average 30°−1° and lows 16°−9°, with 1.1 in27 mm of precipitation in a typical January.
- Record high
- 57°14° (2003)
- Record low
- −29°−34° (1962)
- Heating degree days
- 1297
- Cooling degree days
- 0
Ririe in February
Highs average 36°2° and lows 20°−7°, with 0.95 in24 mm of precipitation in a typical February.
- Record high
- 63°17° (1963)
- Record low
- −34°−37° (1985)
- Heating degree days
- 1040
- Cooling degree days
- 0
Ririe in March
Highs average 48°9° and lows 29°−2°, with 1.3 in32 mm of precipitation in a typical March.
- Record high
- 78°26° (2026)
- Record low
- −15°−26° (1960)
- Heating degree days
- 826
- Cooling degree days
- 0
Ririe in April
Highs average 58°14° and lows 34°1°, with 1.4 in36 mm of precipitation in a typical April.
- Record high
- 85°29° (1992)
- Record low
- 9°−13° (1953)
- Heating degree days
- 569
- Cooling degree days
- 0
Ririe in May
Highs average 67°20° and lows 42°6°, with 1.9 in49 mm of precipitation in a typical May.
- Record high
- 95°35° (2003)
- Record low
- 20°−7° (1954)
- Heating degree days
- 322
- Cooling degree days
- 6
Ririe in June
Highs average 77°25° and lows 49°9°, with 1.3 in32 mm of precipitation in a typical June.
- Record high
- 100°38° (1988)
- Record low
- 28°−2° (1995)
- Heating degree days
- 122
- Cooling degree days
- 52
Ririe in July
Highs average 86°30° and lows 55°13°, with 0.51 in13 mm of precipitation in a typical July.
- Record high
- 104°40° (2002)
- Record low
- 34°1° (1981)
- Heating degree days
- 17
- Cooling degree days
- 195
Ririe in August
Highs average 86°30° and lows 54°12°, with 0.65 in17 mm of precipitation in a typical August.
- Record high
- 101°38° (2026)
- Record low
- 31°−1° (1992)
- Heating degree days
- 21
- Cooling degree days
- 162
Ririe in September
Highs average 75°24° and lows 45°7°, with 1.1 in29 mm of precipitation in a typical September.
- Record high
- 98°37° (2022)
- Record low
- 18°−8° (1985)
- Heating degree days
- 176
- Cooling degree days
- 29
Ririe in OctoberThis month
Highs average 59°15° and lows 35°2°, with 1.2 in31 mm of precipitation in a typical October.
- Record high
- 87°31° (1992)
- Record low
- 2°−17° (2019)
- Heating degree days
- 555
- Cooling degree days
- 0
Ririe in November
Highs average 43°6° and lows 25°−4°, with 0.95 in24 mm of precipitation in a typical November.
- Record high
- 73°23° (1965)
- Record low
- −12°−24° (1975)
- Heating degree days
- 928
- Cooling degree days
- 0
Ririe in December
Highs average 31°−1° and lows 17°−8°, with 1.1 in29 mm of precipitation in a typical December.
- Record high
- 60°16° (1995)
- Record low
- −29°−34° (1972)
- Heating degree days
- 1271
- Cooling degree days
- 0