DENVER -- Rain never let up Tuesday, causing the Colorado Rockies to postpone their game with the Arizona Diamondbacks about 1 hour, 40 minutes before it was due to start.

The teams also were rained out at Coors Field on Monday.

The Rockies and Diamondbacks will try to play a regular doubleheader Wednesday, when wet weather is again forecast. There were discussions about playing another doubleheader Sept. 1 to make up the game postponed Monday.

The Rockies had a third consecutive home game postponed by rain, including an April 26 postponement of a scheduled series finale against the San Francisco Giants. The last time the Rockies had three straight home games postponed by weather was in 2005 against the Florida Marlins, when snow forced postponement of an April 27 game, and a scheduled April 28 doubleheader was postponed.

Arizona last lost three games to weather on May 17-18, 2009. The Diamondbacks had a single game rained out at Atlanta on May 17 and a doubleheader rained out the following day at Florida.

Both the Rockies and Diamondbacks will stay with their scheduled rotation and hope their starters can adapt to unusually long layoffs. Tyler Matzek is scheduled to start the first game Wednesday on eight days of rest with Jordan Lyles taking the mound in the second game on six days of rest.

"You get in that area where it's seven, eight days off between starts, that's probably not ideal," Rockies manager Walt Weiss said. "But I think (Matzek) would still be OK. I'm not too worried about it."

Arizona right-hander Josh Collmenter, who limited the Rockies to one unearned run in eight innings April 29 at Chase Field in a 9-1 win, will pitch Wednesday's opener on six days of rest.

"It's got to be hard," Diamondbacks manager Chip Hale said, "but Colly's the guy I think we feel comfortable with being able to handle it the best. He is just so easy0going and can make adjustments on the fly, so we think he's OK doing this."

Robbie Ray is scheduled to make his 2015 debut in the second game after going 1-3 with a 4.01 ERA in five starts for Triple-A Reno. The Diamondbacks would have had to make a roster move had Ray pitched Tuesday. However, with 26 players allowed on the roster for the second game of a doubleheader, adding Ray on Wednesday will not require a corresponding move.

NOTES: Diamondbacks LHP Patrick Corbin, who underwent Tommy John surgery on March 25, 2014, threw 39 pitches and allowed no hits or walks in three innings in an extended spring training game at the Diamondbacks complex in Scottsdale, Ariz. ... Diamondbacks RHP Archie Bradley (right sinus fracture) could start May 15 at Philadelphia. ... Arizona RF Mark Trumbo was scheduled to bat second in a start Tuesday for the first time in his career. The Diamondbacks have lost three straight games and seven of their past nine, scoring 10 runs in the losses, and manager Chip Hale said he wanted to capitalize on Trumbo's success at Coors Field -- .294 (10-for-34) with seven homers and 17 RBIs in his career. ... Rockies C Nick Hundley has a career-high-tying nine-game hitting streak, the second longest active streak in the National League before Tuesday's game. In that span, Hundley hit . 406 (13-for-32) with two doubles, one homer and four RBI. ... Rockies starters failed to pitch six innings in seven consecutive games and 16 of 24 this season.