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Spring Last Freeze Information
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Midwestern Regional Cimate Center Graphics

Last Freeze Data:
32° F

 
Dates of Last 32°F Freeze: Wyoming
Days since Most Recent 32°F Freeze
Date of Most Recent 32°F Freeze
Over past 14 days
Number of Days <=
32°F
Growing Degree Days (base 42°F) Since Most Recent 32°F Freeze

 


Midwestern Regional Cimate Center Graphics

Last Hard Freeze Data:
28° F
 
Dates of Last 28°F Freeze: Wyoming
Days since Most Recent 28°F Freeze
Date of Most Recent 28°F Freeze
Over past 14 days
Number of Days <=
28°F
Growing Degree Days (base 42°F) Since Most Recent 28°F Freeze

 

Climatological Last Freeze Graphics
Date of Median Last 32° F Freeze
Date of Early Last 32° F Freeze
Date of Late Last 32° F Freeze
 
 
Date of Median Last 28° F Freeze
Date of Early Last 28° F Freeze
Date of Late Last 28° F Freeze

 

7 Day Minimum Temperature Forecast
Tonight's Lows
Tomorrow Night's Lows
Night 3 Lows
 
 
Night 4 Lows
Night 5 Lows
Night 6 Lows
Night 7 Lows
6 - 10 Day Outlook
8 - 14 Day Outlook

More Information

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Dates of the Last Spring Freeze Around West and Central Wyoming

Location County Elev. (ft) Early Average Late 2019
Last  <=32°
2018 2017 2016 2015 2014

Clark 3NE
(1961-2019)

Park 4090 MAY 5 MAY 23 JUN 18 MAY 10 JUN 12 MAY 27 MAY 12 MAY 11 MAY 14
Cody
(1915-2019)
Park 5102 APR 20 MAY 17 JUN 29 MAY 21 APR 25 APR 30 MAY 12 MAY 11 MAY 12
Deaver
(1916-2019)
Big Horn 4105 APR 19 MAY 19 JUN 21 MAY 4 APR 19 APR 21 MAY 12 MAY 11 MAY 14
Greybull Airport
(1999-2019)
Big Horn 3940 APR 15 MAY 10 JUN 7 MAY 10 APR 25 APR 30 APR 15 MAY 11 MAY 13
Thermopolis
(1899-2019)
Hot Springs 4313 APR 17 MAY 18 JUN 29 MAY 3 MAY 1 APR 29 MAY 11 MAY 11 MAY 13
Worland
(1960-2019)
Washakie 4252 APR 18 MAY 10 JUN 12 MAY 10 APR 27 APR 30 MAY 23 MAY 11 MAY 13
Buffalo
(1899-2019)
Johnson 4670 APR 30 MAY 21 JUL 1 MAY 23 MAY 2 MAY 20 MAY 18 MAY 18 MAY 16
Buffalo Airport
(1999-2019)
Johnson 4970 APR 25 MAY 15 JUN 8 MAY 21 APR 25 APR 30 MAY 13 MAY 11 MAY 11
Kaycee
(1949-2019)
Johnson 4660 MAY 1 MAY 25 JUL 4 MAY 24 MAY 12 MAY 21 MAY 18 MAY 20 MAY 14
Moose
(1958-2019)
Teton 6470 MAY 21 JUL 2 JUL 31 MAY 24 JUN 25 JUN 30 JUL 12 JUL 29 JUN 19
Dubois
(1907-2019)
Fremont 6955 MAY 23 JUN 27 JUL 31 MAY 24 JUN 12 MAY 28 JUN 1 JUL 30 JUN 18
Riverton (town)
(1907-2019)
Fremont 4955 APR 20 MAY 21 JUL 7 MAY 22 APR 27 MAY 18 MAY 12 MAY 11 MAY 14
Fremont 5528 MAY 1 MAY 16 JUN 4 MAY 22 MAY 1 MAY 18 MAY 11 MAY 20 MAY 14
Lander (town)
(1999-2019)
Fremont 5320 MAY 4 MAY 21 JUN 19 MAY 24 MAY 4 MAY 23 MAY 24 MAY 16 JUN 19
Lander Hunt Field
(1891-2019)
Fremont 5587 APR 21 MAY 21 JUL 3 MAY 24 MAY 12 MAY 20 MAY 12 MAY 19 JUN 19
Jeffrey City
(1964-2019)
Fremont 6320 MAY 10 JUN 1 JUL 8 MAY 24 MAY 15 MAY 23 MAY 19 MAY 26 JUN 15
Casper Airport
(1939-2019)
Natrona 5350 APR 25 MAY 21 JUL 4 MAY 23 MAY 2 MAY 20 JUN 1 MAY 20 MAY 14
Bedford 3 SE
(1975-2019)
Lincoln 6425 MAY 29 JUN 26 JUL 31 MAY 24 JUN 13 MAY 29 JUN 26 JUL 29 JUN 19
Pinedale
(1948-2019)
Sublette 7195 JUN 11 JUL 4 JUL 31 MAY 25 JUL 1 JUN 14 JUL 15 JUL 30 JUL 1
Big Piney Apt.
(1998-2019)
Sublette 6994 JUN 9 JUN 26 JUL 29 MAY 25 JUL 1 JUN 30 JUL 14 JUN 29 JUL 1
Fossil Butte
(1990-2019)
Lincoln 6780 JUN 20 JUL 5 JUL 31 MAY 24 JUL 1 JUN 30 JUL 13 JUL 30 JUL 1
Green River
(1905-2019)
Sweetwater 6077 MAY 2 JUN 3 JUL 31 MAY 12 MAY 2 MAY 20 MAY 13 MAY 26 MAY 17
Rock Springs Apt.
(1948-2019)
Sweetwater 6765 MAY 1 MAY 28 JUN 30 MAY 23 MAY 2 MAY 20 MAY 23 MAY 24 MAY 14
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Last updated on May 24, 2019


MMM DD = Tmin > 32°F during the past 14 days  |  MMM DD = Tmin <= 32°F during the past 14 days

MMM DD = Record for latest last freeze date.
MMM DD = Record for earliest last freeze date.

 

Median Start of Greenup Date for All Vegetation
 
 
 
Median Start of Greenup Date for All Vegetation - Click to Enlarge
 
Growing Season Data
Location County Elev. (ft) Longest Growing Season
Average Growing Season (Days)
Shortest Growing Season 2018   2017 2016 2015 2014

Clark 3 NE
(1961-2018)

Park 4090
150 (2013)
116
71 (1976)
104  
112
145
103
120

 

Deaver
(1916-2018)
Big Horn 4105
165 (2017, 2018)
123
86 (1992)
165  
165
150
157
120
Thermopolis
(1899-2018)
Hot Springs 4315
181 (2007)
128

65 (1938)

147  
156
148
157
121
Worland
(1960-2018)
Washakie 4245
176 (1989)
140
102 (1974 )
146  
142
135
153
120
Buffalo
(1899-2018)
Johnson 4670
156 (1998)
119
57 (1904)
144  
121
138
146
117
Kaycee
(1949-2018)
Johnson 4975
147 (2015)
113
78 (1964)
137   126 146
147
119
Moose
(1958-2018)
Teton 6470
104 (1961)
50
0 (1995)
64  
78
21
24
43
Dubois
(1907-2018)
Fremont 6955
111 (2017)
58 
0 (1995)
80  
111
83
23
77
Riverton
(1907-2018)
Fremont 4950
159 (1998)
118
67 (1989)
150  
130
145
153
120
Lander (town)
(1999-2018)
Fremont 5320
139 (2018)
102
81 (2000, 2005)
139  
119
108
124
85
Lander Apt.
(1891-2018)
Fremont 5585
170 (1987)
122
57 (1904)
136  
133
145
155
106
Jeffrey City
(1964-2018)
Fremont 6320
127 (2009)
99
53 (1985, 1993)
105  
116
113
88
55
Casper Apt.
(1939-2018)
Natrona 5320
165 (1963)
121
78 (1972)
141  
129
100
94
119
Location County Elev. (ft) Longest Growing Season
Average Growing Season (Days)
Shortest Growing Season 2018   2017 2016 2015 2014
Afton
(1957-2018)
Lincoln 6245  111 (2017) 54 8 (2015) 77    111 57 8 76
Bedford 3 SE
(1975-2018)
Lincoln 6425
109 (1990)
61
8 (1995)
82  
84
38
24
76
Boulder Rearing Station
(1989-2018)
Sublette 6940
86 (2013)
52
19 (2016)
71  
48
19
21
60
Big Piney
(1998-2018)
Sublette 6975
87 (2013)
59
2 (1987)
57  
52
20
24
61
Fossil Butte
(1990-2018)
Lincoln 6780
89 (2013)
50
0 (1995)
55  
77
21
20
61
Green River
(1905-2018)
Sweetwater 6130
149 (2015)
99
45 (1968)
145  
119
145
149
117
Rock Springs Apt.
(1948-2018)
Sweetwater 6760
155 (1963)
116
73 (1973)

145

 
95
132
150
119

XX (2018) = New record set in 2018.  M = missing data during the period.
Growing Season = Number of Days between last Spring Freeze and first Fall freeze (<= 32°F)

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