Frost Dates for Mud Mtn Dam, WA

Elevation: 399 m

Frost Dates

Last Spring Frost (50%) April 18

First Fall Frost (50%) October 31

30% Probability

Last Spring Frost April 28

First Fall Frost October 23

Hard Freeze (28°F)

Last Spring Hard Freeze March 15

First Fall Hard Freeze November 17

47.14°N, 121.94°W © OpenStreetMap

Growing Season

196 Days April 18 to October 31

USDA Hardiness Zone

Zone 8b

Avg. annual minimum: 15 to 20°F

Learn more

Köppen Climate

Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

Köppen climate map

Temperature

30° 50° 70°

39°

Jan

40°

Feb

43°

Mar

47°

Apr

53°

May

58°

Jun

63°

Jul

64°

Aug

59°

Sep

51°

Oct

43°

Nov

39°

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	46°	39°	33°
February	47°	40°	33°
March	51°	43°	35°
April	56°	47°	38°
May	63°	53°	44°
June	67°	58°	48°
July	75°	63°	52°
August	76°	64°	52°
September	70°	59°	48°
October	59°	51°	42°
November	50°	43°	36°
December	45°	39°	33°

Precipitation

0" 2" 4" 6" 6.1"

5.8"

Jan

4.7"

Feb

5.3"

Mar

5.0"

Apr

5.5"

May

4.5"

Jun

2.6"

Jul

3.4"

Aug

4.2"

Sep

5.2"

Oct

6.1"

Nov

6.0"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	5.8
February	4.7
March	5.3
April	5.0
May	5.5
June	4.5
July	2.6
August	3.4
September	4.2
October	5.2
November	6.1
December	6.0

Sunrise / Sunset

Jan: 7:39 AM – 4:21 PM · 8h 42m

Feb: 6:59 AM – 5:01 PM · 10h 02m

Mar: 6:12 AM – 5:48 PM · 11h 36m

Apr: 5:19 AM – 6:41 PM · 13h 22m

May: 4:34 AM – 7:26 PM · 14h 52m

Jun: 4:09 AM – 7:51 PM · 15h 41m

Jul: 4:19 AM – 7:41 PM · 15h 21m

Aug: 4:59 AM – 7:01 PM · 14h 03m

Sep: 5:50 AM – 6:10 PM · 12h 19m

Oct: 6:42 AM – 5:18 PM · 10h 36m

Nov: 7:28 AM – 4:32 PM · 9h 04m

Dec: 7:51 AM – 4:09 PM · 8h 18m

Daylight Longest: 15h 43m · Shortest: 8h 17m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month	Sunrise	Sunset	Daylight
January	7:39 AM	4:21 PM	8h 42m
February	6:59 AM	5:01 PM	10h 02m
March	6:12 AM	5:48 PM	11h 36m
April	5:19 AM	6:41 PM	13h 22m
May	4:34 AM	7:26 PM	14h 52m
June	4:09 AM	7:51 PM	15h 41m
July	4:19 AM	7:41 PM	15h 21m
August	4:59 AM	7:01 PM	14h 03m
September	5:50 AM	6:10 PM	12h 19m
October	6:42 AM	5:18 PM	10h 36m
November	7:28 AM	4:32 PM	9h 04m
December	7:51 AM	4:09 PM	8h 18m

Nearby Stations

Buckley 1 Ne, WA April 7 - October 30 Palmer 3 Ese, WA April 3 - November 11 Mcmillin Rsvr, WA April 11 - October 30 Landsburg, WA April 20 - October 25 Cedar Lake, WA April 23 - November 1 Tacoma #1, WA March 8 - November 14

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