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What is Dennison Cemetery, CT, Weather Like in October?
During the month of October, Dennison Cemetery, CT,
has an average daytime high temperature of 64°F and an average overnight low temperature dropping to 47°F.
Around 4.42 inches of precipitation is received during the month,
with about 40.57 inches falling in a typical year.
As you might expect, snow is not common in the month of October.
Annually, Dennison Cemetery receives around 18.80 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 23, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 61.6 F
(-3.2 vs avg)
Average Low: 46 F
(-2.5 vs avg)
Daytime temperatures were significantly below average.
Actual data from: KGON
Dennison Cemetery, CT Daily Weather Averages for October
Recorded at Groton
(usc00063207),
4.1 miles
W of
Dennison Cemetery, CT
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 52 F | 68 F | 60 F | 0.14" | 36.29" | 0.00" | 18.80" | 5.6 F | 0.9 F |
| 10/2 | 52 F | 68 F | 60 F | 0.28" | 36.43" | 0.00" | 18.80" | 5.9 F | 0.9 F |
| 10/3 | 52 F | 68 F | 60 F | 0.41" | 36.56" | 0.00" | 18.80" | 6.2 F | 0.8 F |
| 10/4 | 51 F | 67 F | 59 F | 0.55" | 36.70" | 0.00" | 18.80" | 6.5 F | 0.7 F |
| 10/5 | 51 F | 67 F | 59 F | 0.69" | 36.84" | 0.00" | 18.80" | 6.8 F | 0.7 F |
| 10/6 | 50 F | 67 F | 59 F | 0.83" | 36.98" | 0.00" | 18.80" | 7.1 F | 0.6 F |
| 10/7 | 50 F | 66 F | 58 F | 0.97" | 37.12" | 0.00" | 18.80" | 7.4 F | 0.6 F |
| 10/8 | 50 F | 66 F | 58 F | 1.11" | 37.26" | 0.00" | 18.80" | 7.7 F | 0.5 F |
| 10/9 | 49 F | 66 F | 58 F | 1.25" | 37.40" | 0.00" | 18.80" | 8 F | 0.5 F |
| 10/10 | 49 F | 65 F | 57 F | 1.39" | 37.54" | 0.00" | 18.80" | 8.3 F | 0.4 F |
| 10/11 | 49 F | 65 F | 57 F | 1.52" | 37.67" | 0.00" | 18.80" | 8.6 F | 0.4 F |
| 10/12 | 48 F | 65 F | 56 F | 1.65" | 37.80" | 0.00" | 18.80" | 8.9 F | 0.4 F |
| 10/13 | 48 F | 64 F | 56 F | 1.79" | 37.94" | 0.00" | 18.80" | 9.2 F | 0.3 F |
| 10/14 | 48 F | 64 F | 56 F | 1.93" | 38.08" | 0.00" | 18.80" | 9.5 F | 0.3 F |
| 10/15 | 47 F | 64 F | 55 F | 2.08" | 38.23" | 0.00" | 18.80" | 9.8 F | 0.2 F |
| 10/16 | 47 F | 63 F | 55 F | 2.22" | 38.37" | 0.00" | 18.80" | 10.1 F | 0.2 F |
| 10/17 | 47 F | 63 F | 55 F | 2.37" | 38.52" | 0.00" | 18.80" | 10.4 F | 0.2 F |
| 10/18 | 46 F | 63 F | 54 F | 2.51" | 38.66" | 0.00" | 18.80" | 10.7 F | 0.2 F |
| 10/19 | 46 F | 62 F | 54 F | 2.65" | 38.80" | 0.00" | 18.80" | 11 F | 0.1 F |
| 10/20 | 46 F | 62 F | 54 F | 2.80" | 38.95" | 0.00" | 18.80" | 11.3 F | 0.1 F |
| 10/21 | 45 F | 62 F | 54 F | 2.95" | 39.10" | 0.00" | 18.80" | 11.6 F | 0.1 F |
| 10/22 | 45 F | 61 F | 53 F | 3.10" | 39.25" | 0.00" | 18.80" | 11.9 F | 0.1 F |
| 10/23 | 45 F | 61 F | 53 F | 3.25" | 39.40" | 0.00" | 18.80" | 12.2 F | 0.1 F |
| 10/24 | 45 F | 61 F | 53 F | 3.40" | 39.55" | 0.00" | 18.80" | 12.5 F | 0.1 F |
| 10/25 | 44 F | 60 F | 52 F | 3.54" | 39.69" | 0.00" | 18.80" | 12.8 F | 0.1 F |
| 10/26 | 44 F | 60 F | 52 F | 3.69" | 39.84" | 0.00" | 18.80" | 13.1 F | 0.1 F |
| 10/27 | 44 F | 60 F | 52 F | 3.83" | 39.98" | 0.00" | 18.80" | 13.4 F | 0.1 F |
| 10/28 | 43 F | 59 F | 51 F | 3.98" | 40.13" | 0.00" | 18.80" | 13.7 F | N/A |
| 10/29 | 43 F | 59 F | 51 F | 4.13" | 40.28" | 0.00" | 18.80" | 14 F | N/A |
| 10/30 | 43 F | 59 F | 51 F | 4.28" | 40.43" | 0.00" | 18.80" | 14.4 F | N/A |
| 10/31 | 42 F | 58 F | 50 F | 4.42" | 40.57" | 0.00" | 18.80" | 14.7 F | N/A |
