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Weather: Temp RH and Dew Point Tables

  1. Full Set PDF
  2. Elevation 0-500 feet (0-300 feet in Alaska), 30 in.
  3. Elevation 501-1,900 feet (301-1,700 feet in Alaska), 29 in.
  4. Elevation 1,901-3,900 feet (1,701-3,600 feet in Alaska), 27 in.
  5. Elevation 3,901-6,100 feet (3,601-5,700 feet in Alaska), 25 in.
  6. Elevation 6,101-8,500 feet (5,701-7,900 feet in Alaska), 23 in.
  7. Elevation 8,501-11,000 feet (above 7,900 feet in Alaska), 21 in.

The following tables calculate Dew Point and Relative Humidity based on the observed wet bulb and dry bulb temperatures and the elevation at the site of the observation. These can be calculated automatically using Wildland Fire RH Calculator Apps for iOS and Android available for free.

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Full Set PDF

Click here to obtain a full set of tables in PDF form. Another available tool is an online Dew Point calculator.

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Elevation 0-500 feet (0-300 feet in Alaska), 30 in.

Dry Bulb Temp 41-60

Psychometric Tables Pressure 30 in, DB Temp 41-60

Dry Bulb Temp 61-80

Psychometric Tables Pressure 30 In Mercury, DB Temp 61-80

Dry Bulb Temp 81-100

Psychometric Table, Pressure 30 in, DB Temp 81-100

Dry Bulb Temp 101-119

Psychometric Table, Pressure 30 in, DB Temp 81-100

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Elevation 501-1,900 feet (301-1,700 feet in Alaska), 29 in.

Dry Bulb Temp 41-60

Psychometric Table, Pressure 29 in, DB Temp 41-60

Dry Bulb Temp 61-80

Psychometric Table, Pressure 29 in, DB Temp 61-80

Dry Bulb Temp 81-100

Psychometric Table, Pressure 29 in, DB Temp 81-100

Dry Bulb Temp 101-119

Psychometric Table, Pressure 29 in, DB Temp 101-119

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Elevation 1,901-3,900 feet (1,701-3,600 feet in Alaska), 27 in.

Dry Bulb Temp 41-60

Psychometric Table, Pressure 27 in, DB Temp 41-60

Dry Bulb Temp 61-80

Psychometric Table, Pressure 27 in, DB Temp 61-80

Dry Bulb Temp 81-100

Psychometric Table, Pressure 27 in, DB Temp 81-100

Dry Bulb Temp 101-119

Psychometric Table, Pressure 27 in, DB Temp 101-119

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Elevation 3,901-6,100 feet (3,601-5,700 feet in Alaska), 25 in.

Dry Bulb Temp 41-60

Psychometric Table, Pressure 25 in, DB Temp 41-60

Dry Bulb Temp 61-80

Psychometric Table, Pressure 25 in, DB Temp 61-80

Dry Bulb Temp 81-100

Psychometric Table, Pressure 25 in, DB Temp 81-100

Dry Bulb Temp 101-119

Psychometric Tables Pressure 25 in, DB Temp 101-119

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Elevation 6,101-8,500 feet (5,701-7,900 feet in Alaska), 23 in.

Dry Bulb Temp 31-50

Psychometric Table, Pressure 23 in, DB Temp 31-50

Dry Bulb Temp 51-70

Psychometric Table, Pressure 23 in, DB Temp 51-70

Dry Bulb Temp 71-90

Psychometric Table, Pressure 23 in, DB Temp 71-90

Dry Bulb Temp 91-110

Psychometric Table, Pressure 23 in, DB Temp 91-109

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Elevation 8,501-11,000 feet (above 7,900 feet in Alaska), 21 in.

Dry Bulb Temp 31-50

Psychometric Table, Pressure 21 in, DB Temp 31-50

Dry Bulb Temp 51-70

Psychometric Table, Pressure 21 in, DB Temp 51-70

Dry Bulb Temp 71-90

Psychometric Table, Pressure 21 in, DB Temp 71-90

Modified / Reviewed:

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NWCG Latest Announcements

Incident Position Standards and Next Gen Position Task Books Now Available for Dispatch Incident Positions

Date: March 5, 2025
Contact: National Coordination System Committee

NWCG is excited to announce that Incident Position Standards and Next Generation Position Task Books are now available for all six Dispatch positions:

  • Aircraft Dispatcher
  • Expanded Dispatch Coordinator
  • Expanded Dispatch Recorder
  • Expanded Dispatch Supervisory Dispatcher
  • Expanded Dispatch Support Dispatcher
  • Initial Attack Dispatcher

The Performance Support Packages for these positions, including the Expanded Dispatch Job Aid, J-601 and the Initial Attack and Aircraft Dispatcher Job Aid, J-602, were developed as part of the Incident Performance and Training Modernization (IPTM) effort. These resources support trainees, qualified personnel, and evaluators in their roles.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1.

References:

NWCG Aircraft Dispatcher Position Page 

NWCG Expanded Dispatch Coordinator Position Page 

NWCG Expanded Dispatch Recorder Position Page 

NWCG Expanded Dispatch Supervisory Dispatcher Position Page 

NWCG Expanded Dispatch Support Dispatcher Position Page 

NWCG Initial Attack Dispatcher Position Page 

NWCG Job Aids 

Incident Position Standards and the Next Generation Position Task Books Now Available for DMOB, DOCL, and RESL

Date: February 28, 2025
Contact: Incident Operations Subcommittee

NWCG is excited to announce that Incident Position Standards and the Next Generation Position Task Books are now available for Demobilization Unit Leader (DMOB), Documentation Unit Leader (DOCL), and Resources Unit Leader (RESL).

The Performance Support Packages for these positions, including a job aid for RESL, were developed as part of the Incident Performance and Training Modernization (IPTM) effort. These resources support trainees, qualified personnel, and evaluators in their respective roles.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1.

References:

NWCG Demobilization Unit Leader Position Page 

NWCG Documentation Unit Leader Position Page 

NWCG Resources Unit Leader Position Page 

Next Generation Position Task Book and Updated Incident Position Description Now Available for Operations Section Chief Complex

Date: February 27, 2025
Contact: Incident Operations Subcommittee

NWCG is excited to announce that Operations Section Chief Complex (OSCC) has a Next Generation NWCG Position Task Book for Operations Section Chief Complex (OSCC), PMS 311-108 and an updated Incident Position Description.

These resources support trainees, qualified personnel, and evaluators in their respective roles.

References:

NWCG Operations Section Chief Complex Position Page 

NWCG Operations Section Chief Complex Incident Position Description 

NWCG Position Task Book for Operations Section Chief Complex (OSCC), PMS 311-108 

2025 NWCG Incident Response Pocket Guide (IRPG), PMS 461, Now Available

Date: February 27, 2025
Contact: Incident Operations Subcommittee

NWCG is excited to announce that the 2025 NWCG Incident Response Pocket Guide (IRPG), PMS 461, is now available. Visit NWCG's website to learn about the major updates and changes in the 2025 version of the IRPG. The NWCG Guia de Respuesta de Incidente de Bolsillo (GRI), PMS 461-ES is available electronically and will be available from Great Basin Cache by early summer 2025.

All hard copy materials, including the IRPG, are ordered through the Great Basin Cache (GBK). Information on the ordering process can be found in the National Fire Equipment System (NFES) Catalog.

References:

2025 IRPG Information 

NWCG Incident Response Pocket Guide (IRPG), PMS 461 

NWCG Guia de Respuesta de Incidente de Bolsillo (GRI), PMS 461-ES 

NWCG NFES Catalog - Part 2: Publications, PMS 449-2