Pullman, WA

Washington · Records since 1893–2026

⛅ 65°F Feels like 59°
Currently in Pullman
As of 11:30 AM PDT

Records for September 11

🔥 Record High

95°F

September 11, 2013

+19° from 76° normal

❄ Record Low

31°F

September 11, 1964

-16° from 47° normal
🌞 Normal high: 76°F 🌑 Normal low: 47°F 1991–2020 normals

All-Time Records — Pullman

🔥
110°F
Hottest Day Ever
Aug 4, 1961
❄
-32°F
Coldest Day Ever
Dec 30, 1968
🌧
2.45"
Wettest Day Ever
Aug 10, 1952
☃
18.0"
Most Snow in One Day
Jan 13, 1913

First & Last Dates — Pullman

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)
210 days
Longest growing season
1947
95 days
Shortest growing season
1962
143 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 95°F September 11, 2013
2 95°F September 11, 1953
3 93°F September 11, 2011
4 92°F September 11, 1990
5 91°F September 11, 1899
6 90°F September 11, 1993
7 90°F September 11, 1908
8 89°F September 11, 2002
9 89°F September 11, 1963
10 89°F September 11, 1944

Top 5 Record Lows — September 11

# Temp Date
🥶 31°F September 11, 1964
2 31°F September 11, 1921
3 32°F September 11, 2014
4 32°F September 11, 2012
5 33°F September 11, 1910
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1893–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Pullman

threshold: 92°F (90th percentile of historical Jun–Aug highs)
4.3
Avg heat wave length
days (historical)
98°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Days ≥ 90°F Per Year

1893–2026
15
2026 so far
15
Avg/year 1970–2025
22
Avg/year (last 10 complete)
35
Most in a year (2017)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Pullman

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 10, 1967 – Aug 20, 1967 11 99°F (Aug 16) 97°F 52°F
2 Jul 21, 1994 – Jul 30, 1994 10 101°F (Jul 23) 96°F 58°F
3 Jul 27, 2014 – Aug 5, 2014 10 99°F (Jul 29) 96°F 56°F
4 Jun 26, 2015 – Jul 4, 2015 9 105°F (Jun 28) 96°F 56°F
5 Aug 15, 1897 – Aug 23, 1897 9 100°F (Aug 20) 96°F 57°F
6 Aug 12, 1992 – Aug 19, 1992 8 101°F (Aug 14) 97°F 60°F
7 Aug 22, 1915 – Aug 29, 1915 8 100°F (Aug 29) 96°F 63°F
8 Aug 11, 1933 – Aug 18, 1933 8 98°F (Aug 17) 95°F 61°F
9 Jul 22, 1928 – Jul 28, 1928 7 103°F (Jul 26) 98°F 68°F
10 Aug 10, 2001 – Aug 16, 2001 7 99°F (Aug 12) 95°F 56°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

32
2026 total
above-normal nights
36.8
Avg / summer
1970–2020
76
Most in a summer
1922

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Annual totals and trend across the full period of record · see this year's standing →

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1893–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1893, annual totals have trended -0.17" per decade, about -2.2" across the record.

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

This Year — 2026

How Pullman is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

148 of 252 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

14.14"
2026 YTD
Normal: 11.10"
+3.04"
0.82"
September so far
September normal: 0.65"
+0.17"
1
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Pullman is 3.04" ahead of the normal pace

Period Review — Mar 1 – May 31, 2026

Any window, evaluated against every other year on record — 92 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
48.6°F
Average temperature
23rd-warmest of 128
+1.7°
vs. average
Normal: 46.9°F (1991–2020)
8.35"
Precipitation
5th-wettest of 111
+3.10"
vs. average
Normal: 5.25" · 159% of normal

Average Temperature by Year — Mar 1 – May 31

1894–2026 · 2026 highlighted

Precipitation by Year — Mar 1 – May 31

1896–2026 · 2026 highlighted · trend -0.01" per decade (drier since 1896)

Warmest Mar 1 – May 31 on Record

# Year Avg Temp
1 1934 54.3°F
2 1910 52.7°F
3 1992 50.7°F
4 1940 50.5°F
5 2016 50.2°F
6 1926 50.1°F
7 1947 50.1°F
8 1987 50.0°F
9 1900 49.9°F
10 1941 49.7°F

Coolest Mar 1 – May 31 on Record

# Year Avg Temp
1 1955 39.7°F
2 1917 41.2°F
3 1975 42.0°F
4 1899 42.5°F
5 1896 42.6°F
6 1920 42.8°F
7 1922 42.9°F
8 1967 43.0°F
9 1913 43.0°F
10 1964 43.2°F

Wettest Mar 1 – May 31 on Record

# Year Total
1 2017 9.16"
2 2012 8.92"
3 2011 8.58"
4 1900 8.47"
5 2026 8.35"
6 2009 8.26"
7 1960 7.94"
8 1932 7.87"
9 1916 7.57"
10 1917 7.47"

Driest Mar 1 – May 31 on Record

# Year Total
1 1924 0.91"
2 1999 1.25"
3 2021 1.59"
4 1926 1.65"
5 2005 2.41"
6 1947 2.70"
7 1918 2.77"
8 2000 2.86"
9 1968 2.89"
10 1966 2.93"
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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