Camp Pendleton Mainside weather by month
What a typical year looks like in Camp Pendleton Mainside, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Oceanside Marina, 12 km from Camp Pendleton Mainside; records cover 1910–2026.
The year at a glance
- Precipitation a year
- 10.3 in261 mm
- Snow a year
- Rare
- Last spring freeze
- Rare
- First fall freeze
- Rare
- Heating degree days
- 1,827
- Cooling degree days
- 343
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 38°3° (heating, 99%) and 83°28° (cooling, 1%).
Month by month
Camp Pendleton Mainside in January
Highs average 63°17° and lows 47°8°, with 2.2 in56 mm of precipitation in a typical January.
- Record high
- 87°31° (2005)
- Record low
- 20°−7° (1963)
- Heating degree days
- 313
- Cooling degree days
- 2
Camp Pendleton Mainside in February
Highs average 62°17° and lows 48°9°, with 2.4 in60 mm of precipitation in a typical February.
- Record high
- 90°32° (1977)
- Record low
- 28°−2° (1974)
- Heating degree days
- 281
- Cooling degree days
- 1
Camp Pendleton Mainside in March
Highs average 62°17° and lows 51°10°, with 1.4 in36 mm of precipitation in a typical March.
- Record high
- 90°32° (1978)
- Record low
- 33°1° (1951)
- Heating degree days
- 271
- Cooling degree days
- 2
Camp Pendleton Mainside in April
Highs average 63°17° and lows 53°12°, with 0.8 in20 mm of precipitation in a typical April.
- Record high
- 99°37° (2014)
- Record low
- 33°1° (1975)
- Heating degree days
- 200
- Cooling degree days
- 2
Camp Pendleton Mainside in May
Highs average 65°18° and lows 58°14°, with 0.28 in7.1 mm of precipitation in a typical May.
- Record high
- 95°35° (2014)
- Record low
- 38°3° (1974)
- Heating degree days
- 120
- Cooling degree days
- 4
Camp Pendleton Mainside in June
Highs average 66°19° and lows 61°16°, with 0.08 in2 mm of precipitation in a typical June.
- Record high
- 93°34° (1957)
- Record low
- 43°6° (1975)
- Heating degree days
- 52
- Cooling degree days
- 14
Camp Pendleton Mainside in July
Highs average 70°21° and lows 65°18°, with 0.04 in1 mm of precipitation in a typical July.
- Record high
- 90°32° (1985)
- Record low
- 46°8° (1975)
- Heating degree days
- 7
- Cooling degree days
- 83
Camp Pendleton Mainside in August
Highs average 71°22° and lows 66°19°, with 0.02 in0.5 mm of precipitation in a typical August.
- Record high
- 94°34° (1983)
- Record low
- 47°8° (1975)
- Heating degree days
- 4
- Cooling degree days
- 111
Camp Pendleton Mainside in September
Highs average 71°22° and lows 64°18°, with 0.16 in4.1 mm of precipitation in a typical September.
- Record high
- 108°42° (1963)
- Record low
- 43°6° (1973)
- Heating degree days
- 13
- Cooling degree days
- 83
Camp Pendleton Mainside in OctoberThis month
Highs average 70°21° and lows 58°15°, with 0.57 in14 mm of precipitation in a typical October.
- Record high
- 105°41° (1965)
- Record low
- 36°2° (1961)
- Heating degree days
- 67
- Cooling degree days
- 31
Camp Pendleton Mainside in November
Highs average 67°19° and lows 51°11°, with 0.76 in19 mm of precipitation in a typical November.
- Record high
- 100°38° (1976)
- Record low
- 29°−2° (1961)
- Heating degree days
- 187
- Cooling degree days
- 9
Camp Pendleton Mainside in December
Highs average 63°17° and lows 47°8°, with 1.6 in40 mm of precipitation in a typical December.
- Record high
- 90°32° (1963)
- Record low
- 27°−3° (1968)
- Heating degree days
- 312
- Cooling degree days
- 1