Frost Dates for Cascade Locks, OR

Elevation: 43 m

Frost Dates

Last Spring Frost (50%) March 24

First Fall Frost (50%) November 20

30% Probability

Last Spring Frost March 31

First Fall Frost November 11

Hard Freeze (28°F)

Last Spring Hard Freeze February 24

First Fall Hard Freeze December 9

45.68°N, 121.87°W © OpenStreetMap

Growing Season

241 Days March 24 to November 20

USDA Hardiness Zone

Zone 8a

Avg. annual minimum: 10 to 15°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° 90°

38°

Jan

41°

Feb

45°

Mar

51°

Apr

57°

May

63°

Jun

68°

Jul

69°

Aug

64°

Sep

54°

Oct

45°

Nov

38°

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°	38°	33°
February	48°	41°	34°
March	54°	45°	36°
April	61°	51°	41°
May	68°	57°	47°
June	73°	63°	52°
July	80°	68°	56°
August	82°	69°	57°
September	76°	64°	51°
October	63°	54°	45°
November	50°	45°	39°
December	43°	38°	33°

Precipitation

0" 3" 6" 9" 12"

10.7"

Jan

9.0"

Feb

9.6"

Mar

7.3"

Apr

5.5"

May

4.4"

Jun

2.9"

Jul

3.5"

Aug

5.4"

Sep

8.1"

Oct

11.0"

Nov

12.0"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	10.7
February	9.0
March	9.6
April	7.3
May	5.5
June	4.4
July	2.9
August	3.5
September	5.4
October	8.1
November	11.0
December	12.0

Sunrise / Sunset

Jan: 7:51 AM – 4:43 PM · 8h 52m

Feb: 7:18 AM – 5:26 PM · 10h 08m

Mar: 7:29 AM – 7:06 PM · 11h 37m

Apr: 6:29 AM – 7:47 PM · 13h 18m

May: 5:42 AM – 8:25 PM · 14h 43m

Jun: 5:23 AM – 8:52 PM · 15h 29m

Jul: 5:38 AM – 8:48 PM · 15h 10m

Aug: 6:13 AM – 8:10 PM · 13h 56m

Sep: 6:53 AM – 7:11 PM · 12h 18m

Oct: 7:33 AM – 6:13 PM · 10h 40m

Nov: 7:16 AM – 4:29 PM · 9h 13m

Dec: 7:48 AM – 4:18 PM · 8h 30m

Daylight Pacific Time (PT) Longest: 15h 31m · Shortest: 8h 29m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month	Sunrise	Sunset	Daylight
January	7:51 AM	4:43 PM	8h 52m
February	7:18 AM	5:26 PM	10h 08m
March	7:29 AM	7:06 PM	11h 37m
April	6:29 AM	7:47 PM	13h 18m
May	5:42 AM	8:25 PM	14h 43m
June	5:23 AM	8:52 PM	15h 29m
July	5:38 AM	8:48 PM	15h 10m
August	6:13 AM	8:10 PM	13h 56m
September	6:53 AM	7:11 PM	12h 18m
October	7:33 AM	6:13 PM	10h 40m
November	7:16 AM	4:29 PM	9h 13m
December	7:48 AM	4:18 PM	8h 30m

Nearby Stations

Bonneville Dam, OR March 14 - November 27 Carson Fish Hatchery, WA May 2 - October 9 Parkdale 1 Nne, OR May 13 - October 3 Skamania Fish Hatchery, WA April 29 - October 22 Hood Rvr Exp Stn, OR April 20 - October 13 Headworks Portland Wtr B, OR March 27 - November 18

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