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

 

Sunday, July 27, 2025
7:50 AM (Eastern Standard Time)
Updated every 10 minutes
 
69.3°F
 20.7°C
Humidity77%
Dew Point61.8°F (16.5°C)
WindSW 15 G 21 mph
Heat Index69°F
Barometer30.075" (1018.5 mb)
Solar221 W/m2
Rainfall0.00" (0.00"/hr)
webcam
Facing WNW. Updated every 15 minutes.
Source: Camnet

 

Today's Highs and Lows
Temperature 69.3°F @ 7:50 AM
62.7°F @ 3:11 AM
Dew Point 62.5°F 7:26 AM
56.8°F 1:18 AM
Humidity 84% 3:11 AM
77% 7:49 AM
Wind Gust 21 mph SW @ 7:43 AM
Wind Speed 15 mph SW @ 7:50 AM
Barometer 30.118" 12:08 AM
30.072" 7:47 AM
Precipitation Max 0.00"1 12:00 AM
Last 24 hours 0.00"
Storm total 0.00"
Evapotranspiration 0.015"
Wind Chill Gust Min 61°F 3:34 AM
Wind Chill Avg Min 61°F 3:33 AM
Heat Index Max 69°F 7:42 AM
Sunshine Max 302 W/m2 7:16 AM
1. Instantaneous rainfall rate.


Yesterday July 26, 2025
  Maximum, Minimum Mean/Total
Temperature 79.3°F @ 1:41 PM
64.7°F @ 11:59 PM
72.0°
Dew Point 65.7°F 12:00 AM
51.5°F 1:09 PM
57.1°
Humidity 82% 1:41 AM
39% 1:09 PM
61.8%
Wind Gust 24 mph NE @ 7:45 AM
9.6 84°
Wind Speed 16 mph NE @ 7:46 AM
 
Barometer 30.160" 9:17 AM
30.009" 12:02 AM
30.110
Wind Chill Gust Min 64°F 11:57 PM
Wind Chill Avg Min 64°F 11:59 PM
Heat Index Max 78°F 1:31 PM
Sunshine Max 939 W/m2 12:17 PM 275.3
Degree Days Heating (Base 65°F): 0
Cooling (Base 65°F): 7
Precipitation   0.00"
Evapotranspiration   0.232"
Precipitation Types none
Snowfall 0.0"
Snowcover 0"


Forecast
Partly cloudy with little temperature change.


Number of Days
For July For 2025
Rain: 9
Snow: 0
Heavy Fog: 0
Thunder: 0
High ≥ 90°F: 6
Low ≤ 32°F: 0
High ≤ 32°F: 0
Low ≤ 0°F: 0
Cloudy: 0
Partly Cloudy: 0
Clear: 0
Rain: 75
Snow: 0
Heavy Fog: 0
Thunder: 0
High ≥ 90°F: 12
Low ≤ 32°F: 73
High ≤ 32°F: 32
Low ≤ 0°F: 0
Cloudy: 0
Partly Cloudy: 0
Clear: 0
Date of last rainfall: July 21, 2025 (6 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 0 1 1
Cooling - Base 65°F 1 256 458
 
Wind Run
Today 86.5 miles
This month 5988.4 miles
This year 60249.1 miles


Sun, Moon
Twilight begins 4:10 AM
Sunrise 4:34 AM
Sunset 7:07 PM
Twilight ends 7:31 PM
Moonrise 7:31 AM
Moonset 8:49 PM
 
Sunshine Minutes (intensity ≥ 120 W/m2)
Today 96
This Month 16,962
This Year 103,754
Yesterday 672
One Year Ago 662


Monthly and Yearly Statistics
  Monthly
Maximum, Minimum, Mean/Total
Yearly
Maximum, Minimum, Mean/Total
Temperature °F 93.3° on Jul 25 1:05 PM
54.7° on Jul 22 4:15 AM
Mean 74.2°
99.0° on Jun 24 1:32 PM
2.5° on Jan 22 6:46 AM
Mean 49.3°
Dew Point °F 78.8° on Jul 25 12:46 PM
49.0° on Jul 21 7:50 PM
Mean 65.7°
80.3° on Jun 23 3:01 PM
-5.8° on Jan 22 6:34 PM
Mean 40.4°
Humidity 96% on Jul 1 2:05 AM
39% on Jul 26 1:09 PM
Mean 78.1%
100% on Jan 1 9:29 AM
20% on Apr 30 5:01 PM
Mean 74.6%
Wind Gust (mph) W 38 on Jul 17 11:57 PM
WSW 0 on Jul 3 7:45 AM
Mean 231° 9.5
S 69 on Mar 6 1:35 AM
WNW 0 on Jan 10 8:15 PM
Mean 251° 12.1
Wind Speed W 30 on Jul 18 12:01 AM
SSW 0 on Jul 3 8:01 AM
W 49 on Feb 17 1:40 PM
SE 0 on Jan 11 6:34 AM
Barometer 30.280" on Jul 23 8:40 AM
29.684" on Jul 20 6:01 PM
Mean 30.012"
30.654" on Feb 2 9:02 AM
28.942" on Feb 16 8:13 PM
Mean 29.966"
Precipitation Total 5.01" Total 37.43"
Evapotranspiration Total 4.862" Total 25.045"
Wind Chill Gust °F Min 51° on Jul 22 4:24 AM Min -16° on Jan 22 7:14 AM
Wind Chill Avg °F Min 52° on Jul 22 4:52 AM Min -15° on Jan 22 7:15 AM
Heat Index °F Max 110° on Jul 25 1:03 PM Max 113° on Jun 24 1:32 PM
Sunshine (W/m2) Max 1167 on Jul 7 12:05 PM
Mean 241.9
Max 1308 on Apr 27 12:17 PM
Mean 166.7
Extremes are the first of multiple occurrences.


All-Time Records
  Maximum, Minimum
Temperature °F 99.1° on Jul 6, 2010 1:59 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 Nov 26, 2009 3:18 AM
Humidity 100% on Apr 24, 2004 7:18 AM
0% on Apr 5, 2007 8:24 AM
Wind Gust (mph) SSE 95 on Dec 19, 2023 11:31 AM
ESE 0 on Apr 21, 2004 1:52 AM
Wind Speed S 57 on Apr 13, 2020 3:38 PM
SSW 0 on Apr 21, 2004 2:06 AM
Barometer 30.932" on Dec 14, 2024 10:03 AM
28.675" on Feb 7, 2020 2:58 PM
Precipitation Max rate 96.00"/hr on Jan 12, 2005 5:44 PM
Evapotranspiration Max day 2.823" on Dec 31, 2009 12:00 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 4.74V

 

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