Neilton weather by month
What a typical year looks like in Neilton, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Humptulips Salmon Hatchery, 21 km from Neilton; records cover 1987–2026.
The year at a glance
- Precipitation a year
- 115.6 in2937 mm
- Snow a year
- 1 in2.5 cm
- Last spring freeze
- Apr 30
- First fall freeze
- Oct 19
- Heating degree days
- 5,938
- Cooling degree days
- 27
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 22°−6° (heating, 99%) and 87°31° (cooling, 1%).
Month by month
Neilton in January
Highs average 45°7° and lows 35°2°, with 18.7 in475 mm of precipitation and 0.5 in1.3 cm of snow in a typical January.
- Record high
- 63°17° (2018)
- Record low
- 11°−12° (2007)
- Heating degree days
- 774
- Cooling degree days
- 0
Neilton in February
Highs average 48°9° and lows 34°1°, with 11.3 in288 mm of precipitation in a typical February.
- Record high
- 73°23° (1992)
- Record low
- 4°−16° (1989)
- Heating degree days
- 685
- Cooling degree days
- 0
Neilton in March
Highs average 51°11° and lows 35°2°, with 13.2 in336 mm of precipitation in a typical March.
- Record high
- 78°26° (1994)
- Record low
- 21°−6° (1989)
- Heating degree days
- 682
- Cooling degree days
- 0
Neilton in April
Highs average 55°13° and lows 38°3°, with 8.7 in220 mm of precipitation in a typical April.
- Record high
- 84°29° (2023)
- Record low
- 25°−4° (2007)
- Heating degree days
- 561
- Cooling degree days
- 0
Neilton in May
Highs average 61°16° and lows 42°6°, with 4.5 in115 mm of precipitation in a typical May.
- Record high
- 93°34° (2008)
- Record low
- 28°−2° (1996)
- Heating degree days
- 409
- Cooling degree days
- 2
Neilton in June
Highs average 64°18° and lows 47°8°, with 3.6 in91 mm of precipitation in a typical June.
- Record high
- 95°35° (2021)
- Record low
- 32°0° (1999)
- Heating degree days
- 285
- Cooling degree days
- 4
Neilton in July
Highs average 69°21° and lows 50°10°, with 1.6 in41 mm of precipitation in a typical July.
- Record high
- 97°36° (1988)
- Record low
- 39°4° (1988)
- Heating degree days
- 176
- Cooling degree days
- 10
Neilton in August
Highs average 70°21° and lows 50°10°, with 2.5 in63 mm of precipitation in a typical August.
- Record high
- 96°36° (1988)
- Record low
- 38°3° (1991)
- Heating degree days
- 159
- Cooling degree days
- 8
Neilton in September
Highs average 67°19° and lows 46°8°, with 4.6 in116 mm of precipitation in a typical September.
- Record high
- 101°38° (1988)
- Record low
- 30°−1° (1999)
- Heating degree days
- 253
- Cooling degree days
- 3
Neilton in OctoberThis month
Highs average 58°14° and lows 41°5°, with 11.2 in285 mm of precipitation in a typical October.
- Record high
- 89°32° (1987)
- Record low
- 23°−5° (2002)
- Heating degree days
- 484
- Cooling degree days
- 0
Neilton in November
Highs average 49°10° and lows 36°2°, with 18.3 in465 mm of precipitation and 0.1 in0.3 cm of snow in a typical November.
- Record high
- 67°19° (1987)
- Record low
- 15°−9° (2006)
- Heating degree days
- 666
- Cooling degree days
- 0
Neilton in December
Highs average 44°7° and lows 34°1°, with 17.4 in442 mm of precipitation and 0.4 in1 cm of snow in a typical December.
- Record high
- 73°23° (2008)
- Record low
- 8°−13° (1990)
- Heating degree days
- 804
- Cooling degree days
- 0