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What is Merrimac River Coast Guard Station, MA, Weather Like in October?
During the month of October, Merrimac River Coast Guard Station, MA,
has an average daytime high temperature of 62°F and an average overnight low temperature dropping to 41°F.
Around 4.92 inches of precipitation is received during the month,
with about 40.38 inches falling in a typical year.
0.40 inches of snow is the mean amount received during October.
Annually, Merrimac River Coast Guard Station receives around 52.30 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 24, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 64.7 F
(+1.5 vs avg)
Average Low: 46.5 F
(+4.7 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_D6903
Merrimac River Coast Guard Station, MA Daily Weather Averages for October
Recorded at Groveland
(usc00193276),
10.1 miles
WSW of
Merrimac River Coast Guard Station, MA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 46 F | 67 F | 57 F | 0.14" | 35.60" | 0.00" | 51.90" | 8.9 F | 0.5 F |
| 10/2 | 46 F | 67 F | 56 F | 0.29" | 35.75" | 0.00" | 51.90" | 9.3 F | 0.5 F |
| 10/3 | 45 F | 67 F | 56 F | 0.43" | 35.89" | 0.00" | 51.90" | 9.6 F | 0.4 F |
| 10/4 | 45 F | 66 F | 55 F | 0.56" | 36.02" | 0.00" | 51.90" | 9.9 F | 0.3 F |
| 10/5 | 44 F | 66 F | 55 F | 0.70" | 36.16" | 0.00" | 51.90" | 10.3 F | 0.3 F |
| 10/6 | 44 F | 65 F | 55 F | 0.85" | 36.31" | 0.00" | 51.90" | 10.6 F | 0.3 F |
| 10/7 | 44 F | 65 F | 54 F | 1.01" | 36.47" | 0.00" | 51.90" | 11 F | 0.2 F |
| 10/8 | 43 F | 65 F | 54 F | 1.16" | 36.62" | 0.00" | 51.90" | 11.4 F | 0.2 F |
| 10/9 | 43 F | 64 F | 54 F | 1.32" | 36.78" | 0.00" | 51.90" | 11.7 F | 0.2 F |
| 10/10 | 42 F | 64 F | 53 F | 1.48" | 36.94" | 0.00" | 51.90" | 12.1 F | 0.2 F |
| 10/11 | 42 F | 63 F | 53 F | 1.64" | 37.10" | 0.00" | 51.90" | 12.4 F | 0.1 F |
| 10/12 | 42 F | 63 F | 52 F | 1.80" | 37.26" | 0.00" | 51.90" | 12.8 F | 0.1 F |
| 10/13 | 41 F | 63 F | 52 F | 1.96" | 37.42" | 0.00" | 51.90" | 13.1 F | 0.1 F |
| 10/14 | 41 F | 62 F | 52 F | 2.12" | 37.58" | 0.00" | 51.90" | 13.4 F | 0.1 F |
| 10/15 | 41 F | 62 F | 51 F | 2.29" | 37.75" | 0.00" | 51.90" | 13.7 F | N/A |
| 10/16 | 40 F | 62 F | 51 F | 2.46" | 37.92" | 0.00" | 51.90" | 14.1 F | N/A |
| 10/17 | 40 F | 61 F | 51 F | 2.63" | 38.09" | 0.10" | 52.00" | 14.4 F | N/A |
| 10/18 | 40 F | 61 F | 50 F | 2.80" | 38.26" | 0.10" | 52.00" | 14.7 F | N/A |
| 10/19 | 39 F | 61 F | 50 F | 2.97" | 38.43" | 0.10" | 52.00" | 15.1 F | N/A |
| 10/20 | 39 F | 60 F | 50 F | 3.14" | 38.60" | 0.10" | 52.00" | 15.4 F | N/A |
| 10/21 | 39 F | 60 F | 49 F | 3.31" | 38.77" | 0.10" | 52.00" | 15.7 F | N/A |
| 10/22 | 38 F | 60 F | 49 F | 3.48" | 38.94" | 0.20" | 52.10" | 16.1 F | N/A |
| 10/23 | 38 F | 59 F | 49 F | 3.65" | 39.11" | 0.20" | 52.10" | 16.4 F | N/A |
| 10/24 | 38 F | 59 F | 48 F | 3.82" | 39.28" | 0.20" | 52.10" | 16.7 F | N/A |
| 10/25 | 38 F | 59 F | 48 F | 3.98" | 39.44" | 0.20" | 52.10" | 17 F | N/A |
| 10/26 | 37 F | 58 F | 48 F | 4.14" | 39.60" | 0.30" | 52.20" | 17.3 F | N/A |
| 10/27 | 37 F | 58 F | 47 F | 4.30" | 39.76" | 0.30" | 52.20" | 17.7 F | N/A |
| 10/28 | 37 F | 57 F | 47 F | 4.46" | 39.92" | 0.30" | 52.20" | 18 F | N/A |
| 10/29 | 36 F | 57 F | 47 F | 4.61" | 40.07" | 0.30" | 52.20" | 18.3 F | N/A |
| 10/30 | 36 F | 57 F | 46 F | 4.77" | 40.23" | 0.40" | 52.30" | 18.6 F | N/A |
| 10/31 | 36 F | 56 F | 46 F | 4.92" | 40.38" | 0.40" | 52.30" | 18.9 F | N/A |
