Flintstone weather by month
What a typical year looks like in Flintstone, Maryland: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Cumberland 2, 17 km from Flintstone; records cover 1974–2026.
The year at a glance
- Precipitation a year
- 39.2 in996 mm
- Snow a year
- 29 in73 cm
- Last spring freeze
- Apr 12
- First fall freeze
- Oct 19
- Heating degree days
- 5,118
- Cooling degree days
- 1,041
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 7°−14° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Flintstone in January
Highs average 39°4° and lows 23°−5°, with 2.8 in71 mm of precipitation and 8 in21 cm of snow in a typical January.
- Record high
- 75°24° (2008)
- Record low
- −14°−26° (1985)
- Heating degree days
- 1058
- Cooling degree days
- 0
Flintstone in February
Highs average 43°6° and lows 24°−5°, with 2.4 in60 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 83°28° (2018)
- Record low
- −5°−21° (2026)
- Heating degree days
- 878
- Cooling degree days
- 0
Flintstone in March
Highs average 53°12° and lows 31°0°, with 3.4 in87 mm of precipitation and 7 in17 cm of snow in a typical March.
- Record high
- 90°32° (1998)
- Record low
- 3°−16° (1984)
- Heating degree days
- 711
- Cooling degree days
- 1
Flintstone in April
Highs average 66°19° and lows 41°5°, with 3.4 in87 mm of precipitation and 0.1 in0.3 cm of snow in a typical April.
- Record high
- 96°36° (1976)
- Record low
- 20°−7° (1982)
- Heating degree days
- 355
- Cooling degree days
- 13
Flintstone in May
Highs average 75°24° and lows 51°11°, with 4.2 in107 mm of precipitation in a typical May.
- Record high
- 98°37° (1996)
- Record low
- 25°−4° (1977)
- Heating degree days
- 136
- Cooling degree days
- 71
Flintstone in June
Highs average 83°28° and lows 60°16°, with 3.9 in98 mm of precipitation in a typical June.
- Record high
- 103°39° (2012)
- Record low
- 39°4° (1977)
- Heating degree days
- 17
- Cooling degree days
- 206
Flintstone in July
Highs average 87°31° and lows 64°18°, with 3.7 in95 mm of precipitation in a typical July.
- Record high
- 105°41° (2011)
- Record low
- 46°8° (1979)
- Heating degree days
- 0
- Cooling degree days
- 333
Flintstone in August
Highs average 85°30° and lows 63°17°, with 3.4 in86 mm of precipitation in a typical August.
- Record high
- 105°41° (2005)
- Record low
- 38°3° (1982)
- Heating degree days
- 2
- Cooling degree days
- 283
Flintstone in September
Highs average 79°26° and lows 55°13°, with 3.6 in90 mm of precipitation in a typical September.
- Record high
- 102°39° (2010)
- Record low
- 31°−1° (1993)
- Heating degree days
- 66
- Cooling degree days
- 118
Flintstone in OctoberThis month
Highs average 67°19° and lows 43°6°, with 2.8 in72 mm of precipitation in a typical October.
- Record high
- 94°34° (2019)
- Record low
- 20°−7° (1976)
- Heating degree days
- 326
- Cooling degree days
- 16
Flintstone in November
Highs average 54°12° and lows 34°1°, with 2.6 in66 mm of precipitation and 0.5 in1.3 cm of snow in a typical November.
- Record high
- 87°31° (1982)
- Record low
- 10°−12° (1976)
- Heating degree days
- 639
- Cooling degree days
- 0
Flintstone in December
Highs average 43°6° and lows 27°−3°, with 3.1 in77 mm of precipitation and 5 in14 cm of snow in a typical December.
- Record high
- 80°27° (2001)
- Record low
- −8°−22° (1983)
- Heating degree days
- 930
- Cooling degree days
- 0