Blue Hill Meteorological Observatory 2
42° 12' 44"N, 71° 06' 53"W, Elevation 635 feet
Milton, Massachusetts USA

 

Wednesday, September 23, 2026
4:40 PM (Eastern Standard Time)
Updated every 10 minutes
 
54.9°F
 12.7°C
Humidity76%
Dew Point47.5°F (8.6°C)
WindE 17 G 28 mph
Wind Chill51°F
Barometer30.554" (1034.7 mb)
Solar30 W/m2
Rainfall0.00" (0.00"/hr)
webcam
Facing WNW. Updated every 15 minutes.
Source: Camnet

 

Today's Highs and Lows
Temperature 62.9°F @ 9:46 AM
50.8°F @ 4:38 AM
Dew Point 52.1°F 7:46 AM
47.0°F 12:00 AM
Humidity 91% 6:01 AM
61% 12:50 PM
Wind Gust 35 mph E @ 8:40 AM
Wind Speed 25 mph E @ 8:46 AM
Barometer 30.584" 12:07 PM
30.458" 2:18 AM
Precipitation Max 0.00"1 12:00 AM
Last 24 hours 0.00"
Storm total 0.00"
Evapotranspiration 0.131"
Wind Chill Gust Min 44°F 5:00 AM
Wind Chill Avg Min 46°F 5:07 AM
Heat Index Max 62°F 9:42 AM
Sunshine Max 951 W/m2 10:47 AM
1. Instantaneous rainfall rate.


Yesterday September 22, 2026
  Maximum, Minimum Mean/Total
Temperature 60.4°F @ 12:52 PM
52.5°F @ 6:48 PM
56.5°
Dew Point 51.4°F 4:42 AM
41.8°F 3:39 PM
47.8°
Humidity 88% 12:00 AM
56% 3:38 PM
75.6%
Wind Gust 29 mph ENE @ 10:40 AM
10.1 67°
Wind Speed 20 mph ENE @ 11:11 AM
 
Barometer 30.469" 11:46 PM
30.244" 12:41 AM
30.377
Wind Chill Gust Min 47°F 8:23 PM
Wind Chill Avg Min 49°F 8:52 PM
Heat Index Max 60°F 12:22 PM
Sunshine Max 940 W/m2 10:17 AM 191.2
Degree Days Heating (Base 65°F): 8
Cooling (Base 65°F): 0
Precipitation   0.00"
Evapotranspiration   0.132"
Precipitation Types none
Snowfall 0.0"
Snowcover 0"


Forecast
Partly cloudy with little temperature change.


Number of Days
For September For 2026
Rain: 8
Snow: 0
Heavy Fog: 0
Thunder: 0
High ≥ 90°F: 0
Low ≤ 32°F: 0
High ≤ 32°F: 0
Low ≤ 0°F: 0
Cloudy: 0
Partly Cloudy: 0
Clear: 0
Rain: 86
Snow: 0
Heavy Fog: 0
Thunder: 0
High ≥ 90°F: 10
Low ≤ 32°F: 83
High ≤ 32°F: 30
Low ≤ 0°F: 3
Cloudy: 0
Partly Cloudy: 0
Clear: 0
Date of last rainfall: September 21, 2026 (2 days)


Observed Conditions
Precipitation types none
Snowfall today 0.0 inches
Snow on the ground 0 inches
Snowfall this season 0.0 inches
 
Degree Days
  Today Month Season
Heating - Base 65°F 8 51 53
Cooling - Base 65°F 0 56 841
 
Wind Run
Today 236.6 miles
This month 5020.0 miles
This year 68997.9 miles


Sun, Moon
Twilight begins 5:15 AM
Sunrise 5:34 AM
Sunset 5:39 PM
Twilight ends 5:57 PM
Moonrise 4:18 PM
Moonset 2:03 AM
 
Sunshine Minutes (intensity ≥ 120 W/m2)
Today 532
This Month 11,952
This Year 135,978
Yesterday 528
One Year Ago 508


Monthly and Yearly Statistics
  Monthly
Maximum, Minimum, Mean/Total
Yearly
Maximum, Minimum, Mean/Total
Temperature °F 83.9° on Sep 4 12:28 PM
48.8° on Sep 15 5:36 AM
Mean 65.0°
98.2° on Jul 2 2:13 PM
-0.9° on Jan 31 5:46 AM
Mean 53.3°
Dew Point °F 71.0° on Sep 3 11:52 AM
41.8° on Sep 22 3:39 PM
Mean 56.2°
78.4° on Jun 12 1:45 PM
-79.1° on Jan 25 6:01 PM
Mean 43.0°
Humidity 98% on Sep 4 6:31 AM
38% on Sep 11 1:49 PM
Mean 77.2%
98% on Mar 7 3:12 AM
0% on Jan 25 6:01 PM
Mean 71.8%
Wind Gust (mph) WNW 40 on Sep 10 5:17 PM
WSW 0 on Sep 1 2:52 AM
Mean 35° 9.2
S 105 on Mar 17 12:22 AM
W 0 on Jan 2 12:16 PM
Mean 258° 10.8
Wind Speed WNW 31 on Sep 10 5:16 PM
ESE 0 on Sep 1 7:12 PM
S 68 on Mar 17 12:12 AM
N 0 on Jan 4 9:06 AM
Barometer 30.584" on Sep 23 12:07 PM
29.760" on Sep 10 4:12 PM
Mean 30.107"
30.707" on Mar 2 10:37 AM
29.286" on Mar 17 2:00 AM
Mean 30.012"
Precipitation Total 2.17" Total 106.44"
Evapotranspiration Total 3.286" Total 35.744"
Wind Chill Gust °F Min 44° on Sep 15 5:11 AM Min -27° on Feb 8 6:42 AM
Wind Chill Avg °F Min 45° on Sep 15 5:12 AM Min -24° on Feb 8 6:43 AM
Heat Index °F Max 86° on Sep 4 12:13 PM Max 109° on Jul 2 1:10 PM
Sunshine (W/m2) Max 1188 on Sep 8 11:16 AM
Mean 169.1
Max 1306 on Jun 7 10:43 AM
Mean 175.7
Extremes are the first of multiple occurrences.


All-Time Records
  Maximum, Minimum
Temperature °F 99.0° on Jun 24, 2025 1:32 PM
-13.4° on Feb 4, 2023 5:47 AM
Dew Point °F 81.5° on Jul 20, 2019 1:48 PM
-79.1° on Jan 3, 2023 2:48 PM
Humidity 100% on Sep 20, 2017 1:11 AM
0% on Jan 3, 2023 2:48 PM
Wind Gust (mph) S 105 on Mar 17, 2026 12:22 AM
SE 0 on Jan 2, 2017 5:01 AM
Wind Speed S 68 on Mar 17, 2026 12:12 AM
N 0 on Jan 1, 2017 2:16 PM
Barometer 30.934" on Dec 14, 2024 10:00 AM
28.675" on Feb 7, 2020 2:58 PM
Precipitation Max rate 82.29"/hr on Jun 15, 2024 10:45 AM
Evapotranspiration Max day 0.407" on May 2, 2018 11:01 PM
Wind Chill Gust °F Min -138° on Feb 3, 2023 3:33 AM
Wind Chill Avg °F Min -134° on Feb 3, 2023 3:36 AM
Heat Index °F Max 113° on Jun 20, 2024 12:23 PM
Sunshine (W/m2) Max 1498 on Jul 13, 2024 11:20 AM
Records begin 04/20/2004.
Extremes are the first of multiple occurrences.


Battery Status
Transmitters All OK
Console 4.69V

 

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