August 2017 Met Central - Slightly Cooler and Slightly Drier than Normal August


August finally brought some cooler temperatures to the refuge
. Average daily
high temperature, average night time lows and daily average
temperatures all ran slightly below normal for August. There were
actually 3 days with new daily record low temperatures.

    August Record Temperatures - High 39.4 (106.5 F), Low 5.0 (41.5 F)
    August Record Temperatures - High 39.4 (106.5 F), Low 5.0 (41.5 F)

August moisture ran slightly below average for the refuge. The 3-month total for the monsoons is just a
few mm's below average.

August Meteorological Summary

                     August     August '17        August '17
Variable             Long-term* Mean    Mean           Mean Range
-------------------------------------------------------------------
Mean Max Temp (C)         31.68           31.2         31.2 - 34.7
Mean Min Temp (C)         16.50           16.3         15.1 - 18.6
Mean Average Temp (C)     24.09           23.8         23.1 - 26.6
Mean R.H. (%)             46.8            47.1         41.6 - 46.2
Mean Vap Press. (mb)      12.64           12.66       11.75 - 13.17
Mean Max Wind (m/sec)      9.9             9.8          8.8 - 11.5
Mean Solar Rad. (kWh/m2)   6.67            6.85        6.59 - 8.47
Precip.(mm)                41.1           35.9         40.4 - 74.5
---------------------------------------------------------------------
*Long-term refers to all of the Sevilleta met stations for 1989-2016

Albuquerque - Sevilleta Comparison

Albuquerque and the Sev ran fairly close to even for August but the
Sevilleta continues to run much better for the year-to-date.

               Loc         Precip          Normal         % of Normal
=====================================================================
August      	ABQ       39.1 mm         40.1 mm            98 %
                SEV       35.9 mm         41.1 mm            87 %

Year to Date    ABQ       137.2 mm        159.5 mm           86 %
                SEV       172.7 mm        154.0 mm          112 %
=====================================================================
Remember to check National Weather Service Monthly highlights at:
http://www.srh.noaa.gov/abq/climate/Monthlyreports/August/MAR2017/August2017.htm

Water-year Precipitation

Even with the slightly below-average precipitation for August, the
water-year rain total remains well above average with only one month
to go in this water-year.


     Water Year Precipitation (mm)

               1989-2015
Month           Mean            2016-2017    
===========================================
Oct             22.2               5.1       
Nov             11.2              45.1
Dec		14.1		  23.1
Jan              8.0		  33.9
Feb 		 7.5		  10.0
Mar		12.9		   9.4
Apr		11.9		  15.8
May		13.3		   8.0
Jun		14.5		   4.4
Jul		44.8		  56.8
Aug          	41.1		  35.9
===========================================
               201.5		  247.5  


Drought

The Drought Monitor says that New Mexico ended August with no portion of the state classified as abnormally dry.

ENSO

A move toward a weak La Nina seems to be in the offing. The Sea
Surface Temperature anomaly for the key 3.4 Nino zone dropped below
zero for the first time since back in January. The Ocean Nino Index
(ONI) for the Jun-Jul-Aug also dropped was to +0.1

The Southern Oscillation Index (SOI) continues to hang slight on the La Nina
side of neutral with a 5-month mean of +0.20.

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