SPDSS_Task53-2_Collect and Fill Missing Monthly Climate Data

• Title: SPDSS Task 53.2 - Collect and Fill Missing Monthly Climate Data
• Description: SPDSS Task 53.2 –Collect and Fill Missing Monthly Climate Data memo discusses the identification of and filling techniques for the key climate stations selected to represent climatic conditions throughout the South Platte, North Platte and Laramie River basins ‎(SPDSS study area)‎.
• Decision Support - Doc Type: Task Memorandum
• Date: 2/7/2005
• DSS Category: Consumptive Use
• DSS: South Platte
• Basin: South Platte
• Contract/PO #: C153954
• Grant Type: Non-Reimbursable
• Bill Number: SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
• Prepared By: Leonard Rice Engineering

may produce an overall lower range of R-values, however does allow for the best correlations for
the data that is actually filled. Instances of this, which take place in the precipitation regression,
are indicated in Table 4 by showing the overall R-value range along with R-values for specific
months being filled.
The filled average monthly temperature and precipitation values are summarized in Table 5 and
Table 6, respectively. The TSTooI input command files, which include the regression
commands for the monthly temperature and precipitation data are provided in Appendix B.
Table 3
Temperature Regression Analysis Results
Dependent Station Independent Station

No. Station
ID
Station Name Station
ID
Station Name Range of Monthly
Correlation
Coefficients (R )
1 109 Akron 4 E (combined) 4945 Leroy 5 WSW 0.919 - 0.981
2 185 Allenspark 1 NW (combined) 2761 Estes Park 1 SSE (combined) (filled) 0.693 - 0.861
3 263 Antero Reservoir 454 Bailey 0.597 - 0.883
4 454 Bailey 3530 Grant 0.789 - 0.938
5 848 Boulder 5116 Longmont 2 ESE 0.593 - 0.944
6 945 Briggsdale 3038 Fort Morgan 0.838 - 0.965
7 1179 Byers 5 ENE 2220 Denver WSFO AP (Stapleton) 0.833 - 0.961
8 1401 Castle Rock 2220 Denver WSFO AP (Stapleton) 0.827 - 0.950
9 1528 Cheesman 454 Bailey 0.563 - 0.904
10 2220 Denver WSFO AP (Stapleton) 6323 Parker 2 N (combined) 0.822 - 0.961
11 2494 Eastonville 2 NNW i No temperature data.
12 2761 Estes Park 1 SSE (combined) 3005 Fort Collins 0.794 - 0.955
13 2790 Evergreen (combined) ~ 2220 Denver WSFO AP (Stapleton) 0.834 - 0.936
14 3005 Fort Collins Complete record/regression not needed.
15 3038 Fort Morgan 945 Briggsdale 0.838 - 0.965
16 3261 Georgetown 454 Bailey (filled) 0.799 - 0.966
17 3553 Greeley UNC (combined) 3005 Fort Collins 0.922 - 0.973
18 4413 Julesburg 7515 Sedgwick 5 S (combined) (filled) 0.874 - 0.977
19 4762 Lakewood (combined) 2220 Denver WSFO AP (Stapleton) 0.844 - 0.935
20 5116 Longmont 2 ESE 3005 Fort Collins 0.876 - 0.953
21 5922 New Raymer 7950 Sterling 0.790 - 0.978
22 5934 New Raymer 21 N (combined) 7950 Sterling 0.678 - 0.905
23 6323 Parker 2 N (combined) 2220 Denver WSFO AP (Stapleton) 0.822 - 0.961
24 6921 Red Feather Lakes (combined) 3005 Fort Collins 0.748 - 0.923
25 7515 Sedgwick 5 S (combined) 4082 Holyoke 0.899 - 0.975
26 7950 Sterling 4945 Leroy 5 WSW 0.755 - 0.976
27 8756 Walden 7848 Spicer 0.770 - 0.957
Notes: i Eastonville 2 NNW has precipitation data only.
z Evergreen station records are only combined for precipitation.
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