Connecticut State The Connecticut Agricultural Experiment Station

For current Growing Degree Day information

See the table below, or:

Please call: (203) 974-8618
or Toll Free 1 (877) 855-2237 ask for extension 8618

 

March 1 - October 31 2021: Table showing the daily maximum and minimum temperatures, rain events, humidity, and Growing Degree Days observed at our weather station, Lockwood Farm, Hamden at 8:00 a.m. Our Growing Degree Days are based on 50 degrees Fahrenheit.

Click on the name of the month to go to it directly.
[March] [April] [May] [June] [July] [August] [September] [October]

Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
March 1 35 44 0.28 74 0
2
 17 46 0.03 28 0
3
 19 31 0 37 0
4
 28 48 0 48 0
5
 22 41 0 28 0
6
 24
 37 0 37 0
7
 23 30 0 36 0
8
 19 39 0 36 0
9
 25 41 0 37 0
10
 28 61 0 53 2.8
11
 34 53 0 75 3.31
12
 42 65 trace 34 8.78
13
 30 65 0 28 13.15
14
 26 47 0 32 13.15
15
 18 47 0 33 13.15
16
 19 32 0 35 13.15
17
 22 34 0 64 13.15
18
 31 48 0 72 13.15
19
 31 44 1.04 21 13.15
20
 25 42 0 28 13.15
21
 31 58 0 31 15.06
22
 28 63 0 63 18.57
23
 33 60 0 71 21.26
24
 36 64 0 73 25.72
25
 40 62 0.88 71 29.73
26
 50 69 0.08 72 39.23
27
 43 78 0 55 50.02
28
 40 65 0 73 55.28
29
 42 55 1.14 36 56.65
30
 26 52 0 55 56.89
31
 37 58 0 74 59.08
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
41 61 0.53 62 62.77
2
 26 45 0.01 34 62.77
3
 27 33 0 20 62.77
4
 27 51 0 32 62.86
5
 43 60 0 40 66.33
6
 41 63 0 21 70.86
7
 39 66 0 50 76.44
8
 39 69 0 48 83.28
9
 39 71 0 74 90.95
10
 48 62 0 67 95.55
11
 50 69 0 73 105.05
12
 45 60 0.03 49 108.73
13
 39 54 0.02 56 109.63
14
 40 65 0 57 114.89
15
 46 69 0.01 74 122.21
16
 35 51 2.15 74 122.32
17
 38 46 0.17 44 122.32
18
 40 53 0 39 122.95
19
 39 63 0 45 127.27
20
 38 66 0 50 132.75
21
 45 73 0 57 141.62
22
 32 63 0.23 37 145.37
23
 34 47 0 36 145.37
24
 38 61 0 25 148.78
25
 47 70 0.3 73 156.41
26
 40 59 0.15 40 159.19
27
 42 58 0 40 161.74
28
 44 67 0 33 168.20
29
 53 74 0.04 73 181.70
30
 55 65 0.06 48 191.70
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
May 1
 39 66 0.02 38 197.28
2
 43 63 0 23 202.01
3
 50 79 0 53 216.51
4
 52 67 0.99 74 226.01
5
 49 63 0.04 74 230.75
6
 46 56 0.16 43 232.86
7
 44 64 0 36 238.10
8
 45 65 0 38 243.82
9
 38 56 trace 40 245.35
10
 45 65 0.76 72 251.07
11
 45 59 0 37
254.33
12
 41 64 0 46 259.28
13
 43 67 0 36 265.67
14
 38 70 0 29 272.82
15
 42 76 0 19 282.79
16
 47 80 0 30 293.96
17
 43 76 0 43 303.96
18
 45 78 trace 52 314.72
19
 55 82 0 37 333.22
20
 47 87 0 49 346.77
21
 47 77 0 72 356.91
22
 53 78 0 41 372.41
23
 64 90 0 47 399.41
24
 54 87 0 52 419.91
25
 46 68 0 56 426.84
26
 59 73 0 66 442.84
27  65  84 0.03 57 467.34
28
 54 81 0 34 484.84
29
 44 70 1.52 74 492.52
30
 45 49 0.22 74 492.52
31
 46 50 1.21 74 492.52
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
45 66 0 73 498.65
2
 50 75 0 65 511.15
3
 54 77 0 73 526.65
4
 60 68 0.09 73 540.65
5
 61 78 0 53 560.15
6
 64 90 0 36 587.15
7
 63 92 0 70 614.65
8
 68 89 0 62 643.15
9
 70 90 0.12 71 673.15
10
 67 92 0.36 51 702.65
11
 50 85 0 42 718.65
12
 58 76 0 72 735.65
13
 51 71 0.02 45 746.65
14
 60 81 0.21 74 767.15
15
 61 70 0.28 76 782.65
16
 60 80 0 53 802.65
17
 45 75 0 39 812.28
18
 47 77 0 48 822.41
19
 65 83 0 60 846.41
20
 61 87 0.07 55 870.41
21
 66 87 0 72 896.91
22
 68 82 0 74 921.91
23
 51 79 0.34 50 936.91
24
 48 75 0 53 946.06
25
 56 77 0.04 74 962.56
26
 64 77 trace 70 983.06
27
 70 82 0 72 1009.06
28
 68 86 0 64 1036.06
29
 70 93 0 62 1067.56
30
 71 96 0 58 1101.06
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
69 97 0.03 66 1134.06
2
 68 85 1.07 73 1160.56
3
 57 76 0.75 74 1177.06
4
 56 61 0.09 74 1185.56
5
 57 75 0 74 1201.56
6
 63 79 0 71 1222.56
7
 67 90 0.76 74 1251.06
8
 68 91 0 70 1280.56
9
 68 79 2.32 72 1304.06
10
 68 85 2.32 69 1330.56
11
 68 81 0 72 1355.06
12
 65 78 0.06 72 1376.56
13
 66 73 0.09 74 1396.06
14
 67 72 0.04 74 1415.56
15
 68 87 0 71 1443.06
16
 69 89 0 71 1472.06
17
 71 91 0.69 70 1503.06
18
 70 91 0 72 1533.56
19
 68 85 0 68 1560.06
20
 63 76 0.04 74 1579.56
21
 63 85 0 68 1603.56
22
 62 82 0.26 63 1625.56
23
 62 83 0 60 1648.06
24
 58 82 0 57 1668.06
25
 66 83 trace 74 1692.56
26
 66 79 0.03 74 1715.06
27
 60 89 0 68 1739.56
28
 64 89 0.08 74 1766.06
29
 63 83 0 71 1789.06
30
 67 77 0.27 67 1811.06
31
 50 81 0 46 1826.56
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
53 75 0 66 1840.56
2
 60 78 0 67 1859.56
3
 57 79 0 67 1877.56
4
 57 78 0 65 1895.06
5
 64 75 0.04 74 1914.56
6
 62
 75 0.01 74 1933.06
7
 63 88 0 58 1958.56
8
 68 85 trace 74 1985.06
9
 68 79 0.12 74 2008.56
10
 65 77 0.08 74 2029.56
11
 71 82 0 74 2056.06
12
 71
 90 0 58 2086.56
13
 69 93 0 67 2117.56
14
 71 95 0 73 2150.56
15
 62 88 0.69 52 2175.56
16
 63
 82 0 67 2198.06
17
 63 83 0 74 2221.06
18
 65 81 0 70 2244.06
19
 74 82 1.40 74 2272.06
20
 68 82 0.28 68 2297.06
21
 69 83 0 68 2323.06
22
 71 85 0.17 72 2351.06
23
 68 74 1.83 76 2372.06
24
 67 75 1.47 74 2393.06
25
 65 88 0 66 2419.56
26
 68 91 0 70 2449.06
27
 70 93 0 70 2480.56
28
 69
 94 0.12 58 2512.06
29
 63 74 0 70 2530.56
30
 64 75 0 72 2550.06
31
 66 85 0 74 2575.56
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
66 83 0.07 74 2600.06
2
 57 67 5.07 72 2612.06
3
 54 75 0 62 2626.56
4
 53 74 0 58 2640.06
5
 58 77 0 74 2657.56
6
 64 74 1 72 2676.56
7
 53 81 0 74 2693.56
8
 59 78 0 74 2712.06
9
 69 81 1.03 74 2737.06
10
 61 73 0.22 72 2754.06
11
 49 73 0 39 2762.01
12
 56 76 0 54 2778.01
13
 65 81 0 67 2801.01
14
 59 82 trace 72 2821.51
15
 63 78 0 74 2842.01
16
 65 85 0.22 74 2867.01
17
 65 76 0.01 74 2887.51
18
 65 76 0 74 2908.01
19
 59 84 0.03 47 2929.51
20
 54 75 0 74 2944.01
21
 52 76 0 74 2958.01
22
 57 77 trace 74 2975.01
23
 71 79 0.09 72 3000.01
24
 61 80 1.13 74 3020.51
25
 53 73 0.19 68 3033.51
26
 55 77 0 54 3049.51
27
 52 71 0 72 3061.01
28
 57 76 0 74 3077.51
29
 48 71 0.13 62 3085.31
30
 51 66 0 61 3093.81
Day of the Month
24 hours ending observation:  MIN. temperature (F)
24 hours ending observation:  MAX. temperature (F)
Rain Event (inches)
Humidity
Growing Degree Days
46 63 0 67 3098.79
2
 44 67 0 65 3105.26
3
 49 75 0 72 3113.83
4
 54 77 0.5 72 3129.33
5
 54 62 0.67 74 3137.33
6
 54 61 0 73 3144.83
7
 49 72 0 74 3152.47
8
 52 74 0 72 3165.47
9
 55 74 0 65 3179.97
10
 56 65 0 72 3190.47
11
 58 63 0.05 74 3200.97
12
 53 71 0 74 3212.97
13
 51 74 0 74 3225.47
14
 54 71 0 71 3237.97
15
 55 76 0 72 3253.47
16
 59 78 0 61 3271.97
17
 48 74 0.33 50 3280.78
18
 40 63 0 68 3285.21
19
 39 58 0.09 74 3287.52
20
 43 66 0 74 3293.50
21
 49 74 0 74 3301.76
22
 52 74 0 74 3314.76
23
 44 72 0 60 3323.22
24
 36 61 0 70 3326.48
25
 38 60 0.38 74 3329.50
26
 50 60 0.95 74 3334.50
27
 50 60 2.28 64 3339.50
28
 47 56 0 64 3341.70
29
 37 55 0 74 3342.86
30
 39 56 0.35 74 3344.43
31
 50 58 0.85 74 3348.43