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Fairmont weather by month

What a typical year looks like in Fairmont, Oklahoma: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at ENID, 17 km from Fairmont; records cover 1894–2026.

Today’s Fairmont forecast

The year at a glance

January: typical high 46.7°F, low 24.7°F, precipitation 1.04 in. February: typical high 51.4°F, low 28.1°F, precipitation 1.28 in. March: typical high 61°F, low 37°F, precipitation 2.41 in. April: typical high 70.1°F, low 45.9°F, precipitation 3.42 in. May: typical high 79.4°F, low 57.5°F, precipitation 4.36 in. June: typical high 89.3°F, low 67.1°F, precipitation 4.83 in. July: typical high 94.8°F, low 71.8°F, precipitation 3.34 in. August: typical high 93.2°F, low 70°F, precipitation 3.63 in. September: typical high 85.2°F, low 61.7°F, precipitation 2.73 in. October: typical high 72.9°F, low 48.8°F, precipitation 3.06 in. November: typical high 59.1°F, low 37.1°F, precipitation 1.69 in. December: typical high 48.3°F, low 27.8°F, precipitation 1.5 in.−30°−34°−10°−23°10°−12°30°−1°50°10°70°21°90°32°110°43°130°54°47°8°25°−4°Jan51°11°28°−2°Feb61°16°37°3°Mar70°21°46°8°Apr79°26°58°14°May89°32°67°19°Jun95°35°72°22°Jul93°34°70°21°Aug85°30°62°17°Sep73°23°49°9°Oct59°15°37°3°Nov48°9°28°−2°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
33.3 in846 mm
Snow a year
9 in24 cm
Last spring freeze
Apr 4
First fall freeze
Nov 3
Heating degree days
3,975
Cooling degree days
2,023

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 10°−12° (heating, 99%) and 104°40° (cooling, 1%).

Month by month

Fairmont in January

Highs average 47°8° and lows 25°−4°, with 1 in26 mm of precipitation and 2.4 in6.1 cm of snow in a typical January.

Record high
84°29° (1943)
Record low
−14°−26° (1905)
Heating degree days
908
Cooling degree days
0

Fairmont in February

Highs average 51°11° and lows 28°−2°, with 1.3 in33 mm of precipitation and 2 in5.1 cm of snow in a typical February.

Record high
92°33° (1918)
Record low
−20°−29° (1905)
Heating degree days
707
Cooling degree days
0

Fairmont in March

Highs average 61°16° and lows 37°3°, with 2.4 in61 mm of precipitation and 1.5 in3.8 cm of snow in a typical March.

Record high
100°38° (1907)
Record low
0°−18° (1960)
Heating degree days
502
Cooling degree days
6

Fairmont in April

Highs average 70°21° and lows 46°8°, with 3.4 in87 mm of precipitation in a typical April.

Record high
101°38° (1972)
Record low
18°−8° (1936)
Heating degree days
241
Cooling degree days
31

Fairmont in May

Highs average 79°26° and lows 58°14°, with 4.4 in111 mm of precipitation in a typical May.

Record high
104°40° (1985)
Record low
28°−2° (1909)
Heating degree days
59
Cooling degree days
166

Fairmont in June

Highs average 89°32° and lows 67°19°, with 4.8 in123 mm of precipitation in a typical June.

Record high
111°44° (1918)
Record low
43°6° (1903)
Heating degree days
2
Cooling degree days
398

Fairmont in July

Highs average 95°35° and lows 72°22°, with 3.3 in85 mm of precipitation in a typical July.

Record high
115°46° (1936)
Record low
50°10° (1915)
Heating degree days
0
Cooling degree days
567

Fairmont in August

Highs average 93°34° and lows 70°21°, with 3.6 in92 mm of precipitation in a typical August.

Record high
118°48° (1936)
Record low
45°7° (1915)
Heating degree days
0
Cooling degree days
515

Fairmont in September

Highs average 85°30° and lows 62°17°, with 2.7 in69 mm of precipitation in a typical September.

Record high
109°43° (1918)
Record low
33°1° (1985)
Heating degree days
22
Cooling degree days
276

Fairmont in OctoberThis month

Highs average 73°23° and lows 49°9°, with 3.1 in78 mm of precipitation in a typical October.

Record high
100°38° (1910)
Record low
17°−8° (1917)
Heating degree days
189
Cooling degree days
61

Fairmont in November

Highs average 59°15° and lows 37°3°, with 1.7 in43 mm of precipitation and 0.4 in1 cm of snow in a typical November.

Record high
92°33° (1915)
Record low
9°−13° (1911)
Heating degree days
510
Cooling degree days
3

Fairmont in December

Highs average 48°9° and lows 28°−2°, with 1.5 in38 mm of precipitation and 3 in8 cm of snow in a typical December.

Record high
85°29° (1955)
Record low
−10°−23° (1989)
Heating degree days
835
Cooling degree days
0