1. Adnan Akyuz, Ph.D. NDSU, AES State Climatologist Updated 9/14/2017
Drought Conditions
Adnan Akyuz, Ph.D.
NDSU, AES
State Climatologist
Updated 9/14/2017

2. Prelude to Drought 2017 for ND
Period
Precipitation Ranking
Fall 2016
14th Wettest
Winter
6th Wettest
September through February
9th Wettest 6-mo Period
March 2017
48th Driest
April 2017
34th Driest
May 2017
15th Driest
Spring 2017
9th Driest Spring
June
14th Driest
July
11th Driest
August
21st Wettest
Summer
19th Driest
March through August
8th Driest

3. Precipitation Accumulation Since March 1 in Select Locations in ND (Ranking)
Precipitation Totals Since March 1st
Weekly Change
Fargo
8th Driest (Record History: 137 years) -3
Grand Forks
15th Driest (Record History: 125 years) -1
Bismarck
36th Driest (Record History: 143 years) -2
Williston
23rd Driest (Record History: 124 years)
Minot
4th Driest (Record History: 113 years)
Bowman
4th Driest (Record History: 103 years)
Crosby
7th Driest (Record History: 111 years)
Bottineau
26nd Driest (Record History: 121 years) -6

4. Precipitation Accumulation Since June 1 in Select Locations in ND (Ranking)
Precipitation Totals Since March 1st
Weekly Change
Fargo
16th Driest (Record History: 137 years)
Grand Forks
23th Driest (Record History: 125 years)
Bismarck
58th Wettest (Record History: 143 years)
Williston
44th Driest (Record History: 124 years)
Minot
6th Driest (Record History: 113 years)
Bowman
2nd Driest (Record History: 103 years)
Crosby
5th Driest (Record History: 111 years)
Bottineau
28nd Driest (Record History: 121 years)

5. 7-Day Rainfall total

6. 30-Day Rainfall
Total Accumulation
% of Normal

7. Long Term Precipitation % of Normal
60 Days
90 Days

8. (% Change from previous week)
Cumulative % area
(% Change from previous week) DO
98%
(-2) D1
94%
(+27) D4
<1%
(0) D3
19%
(-2) 2%
(+2) D2
49%
(0)

9. State Coverage and Intensity

10. Drought Change
One-week Change
4-week Change

11. State Coverage and Intensity (Time Scale)
*Drought Severity and Coverage Index = DOx1+D1x2+D2x3+D3x4+D4x5
*Akyuz (2007)

12. Mostly, Thursday through Sunday
7-day Forecast
Mostly, Thursday through Sunday
Mon 7am, Sep 11 through Mon 7am, Sep 18

13. Medium Range Forecast
8-14 Day Precipitation
8-14 Day Temperature

14. Medium Range Forecast
Week 3-4 Precipitation
Week 3-4 Temperature

15. 3-Mounth Outlook (September through November)
Precipitation
Temperature

16. Corn GDD Across the State
NDAWN: Based on May 10 Planting

17. Cass County Corn GDD Accumulation and Projection
Average First Hard Freeze Date
Oct. 9
Assumptions:
Location: Cass
Corn: 90-Day
Plant. Date: 5/10
Freeze: 28°F
Estimated Maturity Date
Oct. 4
See: to generate graphs for other locations