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Weather & Climate

Cary Institute maintains a fully outfitted weather station at our campus in Millbrook, NY. The long-term data from this station can be used to understand our changing climate.

According to NOAA’s, National Weather Service climate is the composite of weather conditions of a region, while weather is the state of the atmosphere at a given point in time. In order to understand climate for a region, weather data must be collected in a consistent manner over a long period of time. The Cary Institute maintains a fully outfitted weather station at its campus in Millbrook, NY. The long-term data from this station can be used to understand our changing climate.

Data

For a complete description of measurements, please see the Meta Data | For monthly and yearly summaries go to Data Summaries | For access to data go to Archived Data

The Cary Institute's weather station was installed in 1988 and expanded in 2004 with the addition of a NOAA Climate Reference Network (CRN) station.

Data from our program includes air temperature, precipitation, snow depth, relative humidity, barometric pressure, wind speed and wind direction. In addition, we collect a diverse array of solar radiation data.

The station is also the site for air and precipitation monitoring including ground level ozone, carbon dioxide, and wet and dry deposition of acidic components of the atmosphere.

The CRN station provides temperature and precipitation data as well as soil moisture and temperature, surface temperature, wetness, solar radiation and wind speed at 1.5 meters.

Data from our program is in three-minute, hourly and daily increments. Data from the USCRN is in 5 minute, hourly and daily increments.

Daily Data Summary
DATEMIN. TEMP. (F)MAX. TEMP. (F)HDDSUM HDDTOTAL PRECIP. (in.)PRECIP. pHYTD PRECIP. (in.)SNOW DEPTH (in.)YTD SNOW (in.)AVE. WIND DIR. (deg)MAX. WIND SPEED (mph)MAX. UVB (mW per m^2)MAX. HOURLY AVG. OZONE (ppb)
1/1/20202935.73323740.0017300181533
1/2/202024.848.92824020.0017231192837
1/3/202038.8472224240.015.070.0101718991820
1/4/202036.346.12424480.315.070.3201732161329
1/5/202024.7403324800.0.3201719282238
1/6/202025.843.83025110.0.32017284222535
1/7/202022.740.73325440.0.32017172142433
1/8/202023.739.83325770.0.32017356262238
1/9/20201330.14326210.0.3201759172633
1/10/202025.446.82926500.0.3201722213827
1/11/202038.269.21126610.0.32017237234040
1/12/20202968.61626770.65.820.92017314334538
1/13/202025.434.33527120.0.92017556926
1/14/202031.941.82827400.0.9201730392621
1/15/202027.650.22627660.0.92017302123332
1/16/202024.447.12927960.12NA1.0401742312835
Monthly Temperature & Precipitation Summary 2019
MONTHAVE. TEMP. (F)MIN. TEMP. (F)MAX. TEMP. (F)AVE. RH (%)AVE. WIND DIRECTION (deg)TOTAL PRECIP. (in)PRECIP. pHSNOW (in.)YEARLY SNOW (in.)TEMP. DEPARTURE FROM NORM (F)PRECIP. DEPARTURE FROM NORM (in.)
125.1-6.854.9672984.55.091019-0.51.42
229.2-1263.9672792.945.17260.60.28
335.5-0.374.4612462.124.976.532.5-1.3-1.45
45017.781.4661945.065.06032.51.31.28
557.937.386.974984.815.38..-0.90.4
666.935.691.6691452.414.79..-0.7-2.02
774.452.799.1681735.074.91..1.80.42
869.542.992.9711313.444.92..-1.6-0.76
962.434.295.2711151.14.99..-0.7-3.18
1053.228.688.8751356.875.52..2.22.4
1135.610.667.9701274.175.352.52.5-6.00.70
1230.13.454.8792175.465.4214.517.0-1.01.93
1988-2019 Temperature Means & Extremes (F)
MonthMean Daily Max.Mean Daily Min.Monthly MeanRecord HighDateRecord LowDate
Jan351626711/6/2007-271/27/1994
Feb391829782/21/2018-182/24/2015
Mar482537893/31/1998-103/10/1996
Apr613548964/17/2002124/6/2016
May724659965/18/2017245/1/2008
Jun805467986/25/2003336/1/2001
Jul8559721037/22/2002407/3/2001
Aug8358701038/14/2002408/26/1989
Sep755062969/8/2015279/29/2000
Oct6339518910/2/20191610/31/1988
Nov5130417911/3/2003211/24/1989
Dec4021317512/7/1998-1412/24/1989
Year6138501038/14/2002-271/27/1994
1988-2019 Mean Temperature & Total Precipitation
YearAvg. Temp (deg F)Total Precip. (inches)Frost Free DaysNo. Frost Free Days
19885043.394/27-10/5161
19894744.145/5-9/24142
19905149.095/13-10/2142
19915140.484/27-9/21147
19924735.035/8-9/23138
19934839.154/29-9/19143
19944944.945/29-10/2126
19954842.55/10-9/28141
19964856.145/16-10/3140
19974837.985/9-9/21135
19985139.295/15-9/23131
19995141.465/2-10/6157
20004845.445/17-9/27135
20015031.395/15-9/15123
20025144.685/22-10/14145
20034854.395/5-10/3151
20044943.755/5-10/6154
200550545/13-10/21161
20065146.895/2-10/12165
20075047.945/14-10/13152
20084953.845/1-10/4156
20094942.915/19-10/10144
20105143.045/11-10/10152
20115064.695/6-10/6153
20125238.824/30-10/13166
20134947.945/15-10/23161
20144843.264/25-10/6164
20154940.695/14-10/11150
20165137.015/10-10/11154
20175039.945/11-10/17159
20185065.764/24-10/18177
20194947.484/29-10/5156
1992-2018 Total Snowfall
Snow YearSnowfall (inches)
1992-199361
1993-199465
1994-199521
1995-199692
1996-199735
1997-199820
1998-199928
1999-200032
2000-200152
2001-200219
2002-200391
2003-200443
2004-200558
2005-200634
2006-200732
2007-200837
2008-200934
2009-201043
2010-201168
2011-201227
2012-201345
2013-201466
2014-201569
2015-201613
2016-201760
2017-201868