Frost Dates for Walla Walla East, WA

Based on data from Walla Walla Rgnl AP weather station, 3 miles away

Elevation: 1033 ft

Frost Dates

Last Spring Frost (50%) March 27

First Fall Frost (50%) October 31

30% Probability

Last Spring Frost April 5

First Fall Frost October 24

Hard Freeze (28°F)

Last Spring Hard Freeze March 4

First Fall Hard Freeze November 14

46.05°N, 118.30°W © OpenStreetMap

Growing Season

218 Days March 27 to October 31

USDA Hardiness Zone

Zone 7b

Avg. annual minimum: 5 to 10°F

Learn more

Köppen Climate

Csa Hot-Summer Mediterranean

Hot, dry summers and mild, wet winters. Classic Mediterranean climate ideal for grapes, olives, tomatoes, and herbs. Summer irrigation is usually necessary.

Köppen climate map

Temperature

30° 50° 70° 90°

36°

Jan

40°

Feb

47°

Mar

53°

Apr

60°

May

67°

Jun

76°

Jul

75°

Aug

66°

Sep

54°

Oct

42°

Nov

36°

Dec

32°F

Avg High Avg Temp Avg Low Light Frost (32°F)

Temperature table

Average monthly temperatures (°F)
Month	Avg High	Avg Temp	Avg Low
January	42°	36°	31°
February	47°	40°	33°
March	56°	47°	38°
April	63°	53°	43°
May	71°	60°	49°
June	79°	67°	55°
July	90°	76°	62°
August	89°	75°	62°
September	79°	66°	54°
October	63°	54°	44°
November	49°	42°	36°
December	41°	36°	30°

Precipitation

0" 1" 2" 3" 3.3"

2.6"

Jan

2.4"

Feb

3.3"

Mar

2.9"

Apr

2.8"

May

2.6"

Jun

1.0"

Jul

0.0"

Aug

1.9"

Sep

2.9"

Oct

3.0"

Nov

2.8"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	2.6
February	2.4
March	3.3
April	2.9
May	2.8
June	2.6
July	1.0
August	0.0
September	1.9
October	2.9
November	3.0
December	2.8

Sunrise / Sunset

Jan: 7:38 AM – 4:27 PM · 8h 49m

Feb: 7:05 AM – 5:11 PM · 10h 06m

Mar: 7:15 AM – 6:51 PM · 11h 37m

Apr: 6:14 AM – 7:33 PM · 13h 19m

May: 5:27 AM – 8:12 PM · 14h 46m

Jun: 5:07 AM – 8:40 PM · 15h 33m

Jul: 5:22 AM – 8:35 PM · 15h 13m

Aug: 5:58 AM – 7:56 PM · 13h 58m

Sep: 6:38 AM – 6:57 PM · 12h 18m

Oct: 7:19 AM – 5:58 PM · 10h 39m

Nov: 7:03 AM – 4:14 PM · 9h 11m

Dec: 7:35 AM – 4:02 PM · 8h 27m

Daylight Pacific Time (PT) Longest: 15h 34m · Shortest: 8h 26m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month	Sunrise	Sunset	Daylight
January	7:38 AM	4:27 PM	8h 49m
February	7:05 AM	5:11 PM	10h 06m
March	7:15 AM	6:51 PM	11h 37m
April	6:14 AM	7:33 PM	13h 19m
May	5:27 AM	8:12 PM	14h 46m
June	5:07 AM	8:40 PM	15h 33m
July	5:22 AM	8:35 PM	15h 13m
August	5:58 AM	7:56 PM	13h 58m
September	6:38 AM	6:57 PM	12h 18m
October	7:19 AM	5:58 PM	10h 39m
November	7:03 AM	4:14 PM	9h 11m
December	7:35 AM	4:02 PM	8h 27m

Nearby Stations

Whitman Mission, WA May 2 - October 1 Milton Freewater, OR March 25 - October 29 Dayton 1 Wsw, WA April 28 - October 13 Ice Harbor Dam, WA April 7 - October 22 Pendleton Branch Exp Stn, OR May 12 - September 27 Pendleton Dwtn, OR April 22 - October 9

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